Information Disclosure
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
How It Works
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security. This happens through multiple channels: verbose error messages that display stack traces revealing internal paths and frameworks, improperly secured debug endpoints left active in production, and misconfigured servers that expose directory listings or version control artifacts like .git folders. APIs often leak excessive data in responses—returning full user objects when only a name is needed, or revealing system internals through metadata fields.
Attackers exploit these exposures systematically. They probe for common sensitive files (.env, config.php, backup archives), trigger error conditions to extract framework details, and analyze response timing or content differences to enumerate valid usernames or resources. Even subtle variations—like "invalid password" versus "user not found"—enable account enumeration. Exposed configuration files frequently contain database credentials, API keys, or internal service URLs that unlock further attack vectors.
The attack flow typically starts with passive reconnaissance: examining HTTP headers, JavaScript bundles, and public endpoints for version information and architecture clues. Active probing follows—testing predictable paths, manipulating parameters to trigger exceptions, and comparing responses across similar requests to identify information leakage patterns.
Impact
- Credential compromise: Exposed configuration files, hardcoded secrets in source code, or API keys enable direct authentication bypass
- Attack surface mapping: Stack traces, framework versions, and internal paths help attackers craft targeted exploits for known vulnerabilities
- Data breach: Direct exposure of user data, payment information, or proprietary business logic through oversharing APIs or accessible backups
- Privilege escalation pathway: Internal URLs, service discovery information, and architecture details facilitate lateral movement and SSRF attacks
- Compliance violations: GDPR, PCI-DSS, and HIPAA penalties for exposing regulated data through preventable disclosures
Real-World Examples
A major Git repository exposure affected thousands of websites when .git folders remained accessible on production servers, allowing attackers to reconstruct entire source code histories including deleted commits containing credentials. Tools like GitDumper automated mass exploitation of this misconfiguration.
Cloud storage misconfigurations have repeatedly exposed sensitive data when companies left S3 buckets or Azure Blob containers publicly readable. One incident exposed 150 million voter records because verbose API error messages revealed the storage URL structure, and no authentication was required.
Framework debug modes left enabled in production have caused numerous breaches. Django's DEBUG=True setting exposed complete stack traces with database queries and environment variables, while Laravel's debug pages revealed encryption keys through the APP_KEY variable in environment dumps.
Mitigation
- Generic error pages: Return uniform error messages to users; log detailed exceptions server-side only
- Disable debug modes: Enforce production configurations that suppress stack traces, verbose logging, and debug endpoints through deployment automation
- Access control audits: Restrict or remove development artifacts (
.git, backup files,phpinfo()) and internal endpoints before deployment - Response minimization: API responses should return only necessary fields; implement allowlists rather than blocklists for data exposure
- Security headers: Deploy
X-Content-Type-Options, remove server version banners, and disable directory indexing - Timing consistency: Ensure authentication and validation responses take uniform time regardless of input validity
Recent CVEs (13230)
CVE-2025-34023 is a path traversal vulnerability in Karel IP1211 IP Phone's web management panel that allows remote authenticated attackers to read arbitrary files from the underlying system via unsanitized input to the /cgi-bin/cgiServer.exx endpoint's page parameter. This vulnerability affects IP phone administrators with network access to the management interface and carries a CVSS 8.5 score reflecting high confidentiality impact. Active exploitation evidence was documented by Shadowserver Foundation on 2025-02-02 UTC, indicating real-world attack activity.
CVE-2025-34022 is an unauthenticated path traversal vulnerability in Selea Targa IP OCR-ANPR cameras affecting at least 9 models (iZero, Targa 512, Targa 504, Targa Semplice, Targa 704 TKM, Targa 805, Targa 710 INOX, Targa 750, Targa 704 ILB). The /common/get_file.php script fails to validate the 'file' parameter, allowing remote attackers to read arbitrary files including system credentials in cleartext. Active exploitation was confirmed by Shadowserver Foundation on 2025-02-02 UTC, indicating this is not theoretical-it is actively weaponized in the wild.
CVE-2025-25037 is a critical authentication bypass vulnerability in Aquatronica Controller System that exposes an unauthenticated tcp.php endpoint, allowing remote attackers to retrieve plaintext administrative credentials and sensitive system configuration data without authentication. Affected versions include firmware ≤5.1.6 and web interface ≤2.0. Successful exploitation enables complete system compromise, including unauthorized control of connected aquarium devices and manipulation of critical parameters, representing a direct path to full administrative access with no user interaction required.
A security vulnerability in RISC Zero (CVSS 2.7). Remediation should follow standard vulnerability management procedures.
A security vulnerability in A vulnerability classified as problematic (CVSS 5.3). Risk factors: public PoC available.
A vulnerability has been identified in Keycloak that could lead to unauthorized information disclosure. While it requires an already authenticated user, the /admin/serverinfo endpoint can inadvertently provide sensitive environment information.
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in Metagauss ProfileGrid allows Retrieve Embedded Sensitive Data. This issue affects ProfileGrid : from n/a through 5.9.5.2.
CVE-2025-52715 is a PHP Local File Inclusion (LFI) vulnerability in RadiusTheme's Classified Listing plugin that allows authenticated attackers to include and execute arbitrary local files through improper filename validation in PHP include/require statements. The vulnerability affects Classified Listing versions up to 4.2.0, and while the CVSS score of 7.5 indicates high severity, exploitation requires local authentication and non-standard attack complexity, suggesting moderate real-world risk absent evidence of active exploitation or public proof-of-concept.
COROS PACE 3 smartwatches through firmware version 3.0808.0 download firmware updates over unencrypted HTTP connections when connected to WLAN, enabling attackers to intercept, modify, or inject malicious firmware without authentication. This critical vulnerability (CVSS 9.8) affects all users of the PACE 3 device and could result in complete device compromise, data exfiltration, or persistent malware installation. No active exploitation in the wild has been confirmed at this time, but the trivial attack complexity and network accessibility make this a high-priority patch target.
CVE-2025-32879 is a security vulnerability (CVSS 8.8) that allows an attacker. Risk factors: public PoC available.
CVE-2025-32878 is a security vulnerability (CVSS 9.8). Risk factors: public PoC available.
CVE-2025-32877 is a security vulnerability (CVSS 9.8) that allows attackers. Risk factors: public PoC available.
Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.0.1, contains an improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to denial of service, information disclosure, and information tampering.
An issue was discovered in GitLab EE affecting all versions starting from 17.0 prior to 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2, where webhook deletion audit log preserved auth credentials.
In the Linux kernel, the following vulnerability has been resolved: net_sched: prio: fix a race in prio_tune() Gerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
CVE-2025-49715 is a private personal information disclosure vulnerability in Microsoft Dynamics 365 FastTrack Implementation Assets that allows unauthenticated network-based attackers to access sensitive user data without any user interaction. The vulnerability has a CVSS score of 7.5 (High) with confirmed high confidentiality impact, and affects organizations using Dynamics 365 FastTrack resources. Given the network-accessible nature and lack of authentication requirements, this poses significant risk to enterprise customer data security.
IBM QRadar SIEM 7.5 through 7.5.0 Update Package 12 stores potentially sensitive information in log files that could be read by a local user.
IBM QRadar SIEM versions 7.5 through 7.5.0 Update Package 12 contain an XML External Entity (XXE) injection vulnerability that allows authenticated remote attackers to extract sensitive information or trigger denial-of-service conditions through memory exhaustion. The vulnerability requires valid credentials (CVSS PR:L) but has a high confidentiality impact (C:H) and affects a critical security infrastructure product. No publicly available evidence of active exploitation or public POCs has been confirmed at this time.
RabbitMQ is a messaging and streaming broker. In versions 3.13.7 and prior, RabbitMQ is logging authorization headers in plaintext encoded in base64. When querying RabbitMQ api with HTTP/s with basic authentication it creates logs with all headers in request, including authorization headers which show base64 encoded username:password. This is easy to decode and afterwards could be used to obtain control to the system depending on credentials. This issue has been patched in version 4.0.8.
A remote code execution vulnerability in versions from 2.5.0 to (CVSS 8.3). High severity vulnerability requiring prompt remediation. Vendor patch is available.
A security vulnerability in Hydra (CVSS 4.8). Remediation should follow standard vulnerability management procedures.
Critical SQL Injection vulnerability in WeGIA (a web-based management system for charitable institutions) affecting the 'id' parameter of the /WeGIA/controle/control.php endpoint in versions prior to 3.4.2. This unauthenticated, network-accessible vulnerability enables attackers to execute arbitrary SQL queries without privileges or user interaction, resulting in complete compromise of database confidentiality, integrity, and availability. The CVSS 9.8 score reflects the severe impact potential; however, KEV status, EPSS probability, and public POC availability could not be confirmed from provided data and should be verified through CISA and exploit databases.
pgai, a Python library for PostgreSQL-based RAG and agentic applications, contains a secrets exfiltration vulnerability (CVE-2025-52467) that allows unauthenticated remote attackers to extract all workflow secrets, including GITHUB_TOKEN credentials with repository write permissions. This vulnerability has a CVSS score of 9.1 (Critical) and affects pgai versions prior to commit 8eb3567; a patch is available and the vulnerability is not currently listed in CISA KEV, though the high CVSS and direct credential exposure indicate substantial real-world risk if the library is deployed in CI/CD environments.
Critical authentication bypass vulnerability in Versa Director that exposes multiple services (SSH, PostgreSQL, and others) with default credentials on internet-facing deployments. The vulnerability affects Versa Director installations where default passwords remain unchanged, allowing unauthenticated remote attackers to gain complete system compromise (confidentiality, integrity, and availability impact). While no confirmed exploitation has been reported, proof-of-concept code has been publicly disclosed by security researchers, and the CVSS 9.8 score reflects the severity of unrestricted remote access with default credentials.
A remote code execution vulnerability in CloudClassroom-PHP-Project v1.0 (CVSS 9.8). Risk factors: public PoC available.
CloudClassroom-PHP-Project v1.0 contains a critical SQL injection vulnerability in the loginlinkadmin.php component that allows unauthenticated attackers to bypass authentication and gain unauthorized administrative access by injecting malicious SQL payloads into the username field. With a CVSS score of 9.8 and network-accessible attack vector requiring no privileges or user interaction, this vulnerability poses immediate and severe risk to all deployments. While specific KEV status and EPSS data were not provided in the intelligence sources, the combination of complete authentication bypass capability, high CVSS score, and trivial exploitation complexity suggests this is actively exploitable and likely to be targeted by opportunistic attackers.
A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software. For a description of this vulnerability, see the .
IBM Sterling B2B Integrator and IBM Sterling File Gateway 6.0.0.0 through 6.1.2.6 and 6.2.0.0 through 6.2.0.4 could allow a local user to obtain sensitive information from a user’s web browser cache due to not using a suitable caching policy.
CVE-2025-49015 is a security vulnerability (CVSS 4.9). Remediation should follow standard vulnerability management procedures.
D-Link DPH-400S/SE VoIP phones running firmware v1.01 contain hardcoded provisioning credentials (PROVIS_USER_PASSWORD) embedded directly in the firmware binary, allowing attackers with firmware access to extract sensitive authentication material via static analysis tools. This critical vulnerability (CVSS 9.8) enables unauthorized access to device management functions and potentially user accounts, with network-accessible exploitation possible if combined with firmware extraction techniques.
CVE-2022-50232 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50230 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP firmware returns. In this case, kmalloc will allocate memory that is the size of the input rather than the size of the data. Since PSP firmware doesn't fully overwrite the buffer, the sev ioctl interfaces with the issue may return uninitialized slab memory. Currently, all of the ioctl interfaces in the ccp driver are safe, but to prevent future problems, change all ioctl interfaces that allocate memory with kmalloc to use kzalloc and memset the data buffer to zero in sev_ioctl_do_platform_status.
In the Linux kernel, the following vulnerability has been resolved: riscv:uprobe fix SR_SPIE set/clear handling In riscv the process of uprobe going to clear spie before exec the origin insn,and set spie after that.But When access the page which origin insn has been placed a page fault may happen and irq was disabled in arch_uprobe_pre_xol function,It cause a WARN as follows. There is no need to clear/set spie in arch_uprobe_pre/post/abort_xol. We can just remove it. [ 31.684157] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1488 [ 31.684677] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 76, name: work [ 31.684929] preempt_count: 0, expected: 0 [ 31.685969] CPU: 2 PID: 76 Comm: work Tainted: G [ 31.686542] Hardware name: riscv-virtio,qemu (DT) [ 31.686797] Call Trace: [ 31.687053] [<ffffffff80006442>] dump_backtrace+0x30/0x38 [ 31.687699] [<ffffffff80812118>] show_stack+0x40/0x4c [ 31.688141] [<ffffffff8081817a>] dump_stack_lvl+0x44/0x5c [ 31.688396] [<ffffffff808181aa>] dump_stack+0x18/0x20 [ 31.688653] [<ffffffff8003e454>] __might_resched+0x114/0x122 [ 31.688948] [<ffffffff8003e4b2>] __might_sleep+0x50/0x7a [ 31.689435] [<ffffffff80822676>] down_read+0x30/0x130 [ 31.689728] [<ffffffff8000b650>] do_page_fault+0x166/x446 [ 31.689997] [<ffffffff80003c0c>] ret_from_exception+0x0/0xc
CVE-2022-50224 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50223 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50222 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50217 is a security vulnerability (CVSS 5.5) that allows pages. Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50215 is a security vulnerability (CVSS 5.5) that allows waiting for commands. Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50210 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50209 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50208 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50207 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50204 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50203 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50202 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: selinux: fix memleak in security_read_state_kernel() In this function, it directly returns the result of __security_read_policy without freeing the allocated memory in *data, cause memory leak issue, so free the memory if __security_read_policy failed. [PM: subject line tweak]
CVE-2022-50199 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50198 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50197 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50195 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50194 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50193 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50191 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50188 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: ath11k: fix netdev open race Make sure to allocate resources needed before registering the device. This specifically avoids having a racing open() trigger a BUG_ON() in mod_timer() when ath11k_mac_op_start() is called before the mon_reap_timer as been set up. I did not see this issue with next-20220310, but I hit it on every probe with next-20220511. Perhaps some timing changed in between. Here's the backtrace: [ 51.346947] kernel BUG at kernel/time/timer.c:990! [ 51.346958] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ... [ 51.578225] Call trace: [ 51.583293] __mod_timer+0x298/0x390 [ 51.589518] mod_timer+0x14/0x20 [ 51.595368] ath11k_mac_op_start+0x41c/0x4a0 [ath11k] [ 51.603165] drv_start+0x38/0x60 [mac80211] [ 51.610110] ieee80211_do_open+0x29c/0x7d0 [mac80211] [ 51.617945] ieee80211_open+0x60/0xb0 [mac80211] [ 51.625311] __dev_open+0x100/0x1c0 [ 51.631420] __dev_change_flags+0x194/0x210 [ 51.638214] dev_change_flags+0x24/0x70 [ 51.644646] do_setlink+0x228/0xdb0 [ 51.650723] __rtnl_newlink+0x460/0x830 [ 51.657162] rtnl_newlink+0x4c/0x80 [ 51.663229] rtnetlink_rcv_msg+0x124/0x390 [ 51.669917] netlink_rcv_skb+0x58/0x130 [ 51.676314] rtnetlink_rcv+0x18/0x30 [ 51.682460] netlink_unicast+0x250/0x310 [ 51.688960] netlink_sendmsg+0x19c/0x3e0 [ 51.695458] ____sys_sendmsg+0x220/0x290 [ 51.701938] ___sys_sendmsg+0x7c/0xc0 [ 51.708148] __sys_sendmsg+0x68/0xd0 [ 51.714254] __arm64_sys_sendmsg+0x28/0x40 [ 51.720900] invoke_syscall+0x48/0x120 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
In the Linux kernel, the following vulnerability has been resolved: ath11k: fix missing skb drop on htc_tx_completion error On htc_tx_completion error the skb is not dropped. This is wrong since the completion_handler logic expect the skb to be consumed anyway even when an error is triggered. Not freeing the skb on error is a memory leak since the skb won't be freed anywere else. Correctly free the packet on eid >= ATH11K_HTC_EP_COUNT before returning. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1
CVE-2022-50184 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50183 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration whose algorithm is to fine tune parameters and calibrate, and check the result. If the result isn't good enough, it could adjust parameters and try again. This issue is to read and show the result, but it could be a negative calibration result that causes divisor 0 and core dump. So, fix it by phy_div() that does division only if divisor isn't zero; otherwise, zero is adopted. divide error: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1 <HASH:d024 28> RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core] RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000000180fc RDI: ffffa141d01023c0 RBP: ffffa9bb412a76a0 R08: 0000000000001319 R09: 00000000ffffff92 R10: ffffffffc0292de3 R11: ffffffffc00d2f51 R12: 0000000000000000 R13: ffffa141d01023c0 R14: ffffffffc0290250 R15: ffffa141d0102638 FS: 00007fa99f5c2740(0000) GS:ffffa142e5e80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000013e8e010 CR3: 0000000110d2c000 CR4: 0000000000750ee0 PKRU: 55555554 Call Trace: rtw89_core_sta_add+0x95/0x9c [rtw89_core <HASH:d239 29>] rtw89_ops_sta_state+0x5d/0x108 [rtw89_core <HASH:d239 29>] drv_sta_state+0x115/0x66f [mac80211 <HASH:81fe 30>] sta_info_insert_rcu+0x45c/0x713 [mac80211 <HASH:81fe 30>] sta_info_insert+0xf/0x1b [mac80211 <HASH:81fe 30>] ieee80211_prep_connection+0x9d6/0xb0c [mac80211 <HASH:81fe 30>] ieee80211_mgd_auth+0x2aa/0x352 [mac80211 <HASH:81fe 30>] cfg80211_mlme_auth+0x160/0x1f6 [cfg80211 <HASH:00cd 31>] nl80211_authenticate+0x2e5/0x306 [cfg80211 <HASH:00cd 31>] genl_rcv_msg+0x371/0x3a1 ? nl80211_stop_sched_scan+0xe5/0xe5 [cfg80211 <HASH:00cd 31>] ? genl_rcv+0x36/0x36 netlink_rcv_skb+0x8a/0xf9 genl_rcv+0x28/0x36 netlink_unicast+0x27b/0x3a0 netlink_sendmsg+0x2aa/0x469 sock_sendmsg_nosec+0x49/0x4d ____sys_sendmsg+0xe5/0x213 __sys_sendmsg+0xec/0x157 ? syscall_enter_from_user_mode+0xd7/0x116 do_syscall_64+0x43/0x55 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fa99f6e689b
CVE-2022-50177 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50176 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: media: tw686x: Fix memory leak in tw686x_video_init video_device_alloc() allocates memory for vdev, when video_register_device() fails, it doesn't release the memory and leads to memory leak, call video_device_release() to fix this.
In the Linux kernel, the following vulnerability has been resolved: net: hinic: avoid kernel hung in hinic_get_stats64() When using hinic device as a bond slave device, and reading device stats of master bond device, the kernel may hung. The kernel panic calltrace as follows: Kernel panic - not syncing: softlockup: hung tasks Call trace: native_queued_spin_lock_slowpath+0x1ec/0x31c dev_get_stats+0x60/0xcc dev_seq_printf_stats+0x40/0x120 dev_seq_show+0x1c/0x40 seq_read_iter+0x3c8/0x4dc seq_read+0xe0/0x130 proc_reg_read+0xa8/0xe0 vfs_read+0xb0/0x1d4 ksys_read+0x70/0xfc __arm64_sys_read+0x20/0x30 el0_svc_common+0x88/0x234 do_el0_svc+0x2c/0x90 el0_svc+0x1c/0x30 el0_sync_handler+0xa8/0xb0 el0_sync+0x148/0x180 And the calltrace of task that actually caused kernel hungs as follows: __switch_to+124 __schedule+548 schedule+72 schedule_timeout+348 __down_common+188 __down+24 down+104 hinic_get_stats64+44 [hinic] dev_get_stats+92 bond_get_stats+172 [bonding] dev_get_stats+92 dev_seq_printf_stats+60 dev_seq_show+24 seq_read_iter+964 seq_read+220 proc_reg_read+164 vfs_read+172 ksys_read+108 __arm64_sys_read+28 el0_svc_common+132 do_el0_svc+40 el0_svc+24 el0_sync_handler+164 el0_sync+324 When getting device stats from bond, kernel will call bond_get_stats(). It first holds the spinlock bond->stats_lock, and then call hinic_get_stats64() to collect hinic device's stats. However, hinic_get_stats64() calls `down(&nic_dev->mgmt_lock)` to protect its critical section, which may schedule current task out. And if system is under high pressure, the task cannot be woken up immediately, which eventually triggers kernel hung panic. Since previous patch has replaced hinic_dev.tx_stats/rx_stats with local variable in hinic_get_stats64(), there is nothing need to be protected by lock, so just removing down()/up() is ok.
In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Fix global state lock backoff We need to grab the lock after the early return for !hwpipe case. Otherwise, we could have hit contention yet still returned 0. Fixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged in CI: WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154 Modules linked in: CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G W 5.19.0-rc2-15930-g875cc8bc536a #1 Hardware name: Qualcomm Technologies, Inc. DB820c (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_modeset_lock+0xf8/0x154 lr : drm_atomic_get_private_obj_state+0x84/0x170 sp : ffff80000cfab6a0 x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00 x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58 x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001 x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038 x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0 x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47 x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610 x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029 x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58 Call trace: drm_modeset_lock+0xf8/0x154 drm_atomic_get_private_obj_state+0x84/0x170 mdp5_get_global_state+0x54/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x2ec/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 ... ---[ end trace 0000000000000000 ]--- drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x148/0x154 mdp5_get_global_state+0x30/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x290/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 drm_atomic_check_only+0x4b0/0x8f4 drm_atomic_commit+0x68/0xe0 Patchwork: https://patchwork.freedesktop.org/patch/492701/
In the Linux kernel, the following vulnerability has been resolved: mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send_msg Free the skb if mt76u_bulk_msg fails in __mt76x02u_mcu_send_msg routine.
CVE-2022-50171 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: kunit: executor: Fix a memory leak on failure in kunit_filter_tests It's possible that memory allocation for 'filtered' will fail, but for the copy of the suite to succeed. In this case, the copy could be leaked. Properly free 'copy' in the error case for the allocation of 'filtered' failing. Note that there may also have been a similar issue in kunit_filter_subsuites, before it was removed in "kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites". This was reported by clang-analyzer via the kernel test robot, here: https://lore.kernel.org/all/[email protected]/ And by smatch via Dan Carpenter and the kernel test robot: https://lore.kernel.org/all/[email protected]/
CVE-2022-50169 is an information disclosure vulnerability in the Linux kernel's Qualcomm wil6210 WiFi driver debugfs implementation, where the wil_write_file_wmi() function fails to fully initialize a buffer before use, allowing local authenticated users to leak kernel memory. The vulnerability affects Linux kernels with the wil6210 driver enabled and has a CVSS score of 7.1 (high severity) with local attack vector and high confidentiality impact. There is no evidence of active exploitation in the wild or public proof-of-concept code, making this a lower real-world priority despite the high CVSS rating.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: When HCI work queue is drained, only queue chained work The HCI command, event, and data packet processing workqueue is drained to avoid deadlock in commit 76727c02c1e1 ("Bluetooth: Call drain_workqueue() before resetting state"). There is another delayed work, which will queue command to this drained workqueue. Which results in the following error report: Bluetooth: hci2: command 0x040f tx timeout WARNING: CPU: 1 PID: 18374 at kernel/workqueue.c:1438 __queue_work+0xdad/0x1140 Workqueue: events hci_cmd_timeout RIP: 0010:__queue_work+0xdad/0x1140 RSP: 0000:ffffc90002cffc60 EFLAGS: 00010093 RAX: 0000000000000000 RBX: ffff8880b9d3ec00 RCX: 0000000000000000 RDX: ffff888024ba0000 RSI: ffffffff814e048d RDI: ffff8880b9d3ec08 RBP: 0000000000000008 R08: 0000000000000000 R09: 00000000b9d39700 R10: ffffffff814f73c6 R11: 0000000000000000 R12: ffff88807cce4c60 R13: 0000000000000000 R14: ffff8880796d8800 R15: ffff8880796d8800 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0174b4000 CR3: 000000007cae9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? queue_work_on+0xcb/0x110 ? lockdep_hardirqs_off+0x90/0xd0 queue_work_on+0xee/0x110 process_one_work+0x996/0x1610 ? pwq_dec_nr_in_flight+0x2a0/0x2a0 ? rwlock_bug.part.0+0x90/0x90 ? _raw_spin_lock_irq+0x41/0x50 worker_thread+0x665/0x1080 ? process_one_work+0x1610/0x1610 kthread+0x2e9/0x3a0 ? kthread_complete_and_exit+0x40/0x40 ret_from_fork+0x1f/0x30 </TASK> To fix this, we can add a new HCI_DRAIN_WQ flag, and don't queue the timeout workqueue while command workqueue is draining.
In the Linux kernel, the following vulnerability has been resolved: wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()` Commit 7a4836560a61 changes simple_write_to_buffer() with memdup_user() but it forgets to change the value to be returned that came from simple_write_to_buffer() call. It results in the following warning: warning: variable 'rc' is uninitialized when used here [-Wuninitialized] return rc; ^~ Remove rc variable and just return the passed in length if the memdup_user() succeeds.
Kernel memory corruption vulnerability in the Linux kernel's iwlwifi driver (Intel WiFi module) that allows a local privileged attacker to cause a denial of service or potentially execute arbitrary code. The vulnerability stems from improper list management in the iwl_mvm_mac_wake_tx_queue function, where disabled station queues are not properly cleaned up, leading to list_add corruption when new elements are added. Affected users are those running Linux kernel versions containing the vulnerable iwlwifi mvm driver on systems with Intel WiFi adapters; the vulnerability requires local access and low privileges to exploit.
CVE-2022-50162 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50161 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50160 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50159 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50158 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50157 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50155 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50154 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50153 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
CVE-2022-50152 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: driver core: fix potential deadlock in __driver_attach In __driver_attach function, There are also AA deadlock problem, like the commit b232b02bf3c2 ("driver core: fix deadlock in __device_attach"). stack like commit b232b02bf3c2 ("driver core: fix deadlock in __device_attach"). list below: In __driver_attach function, The lock holding logic is as follows: ... __driver_attach if (driver_allows_async_probing(drv)) device_lock(dev) // get lock dev async_schedule_dev(__driver_attach_async_helper, dev); // func async_schedule_node async_schedule_node_domain(func) entry = kzalloc(sizeof(struct async_entry), GFP_ATOMIC); /* when fail or work limit, sync to execute func, but __driver_attach_async_helper will get lock dev as will, which will lead to A-A deadlock. */ if (!entry || atomic_read(&entry_count) > MAX_WORK) { func; else queue_work_node(node, system_unbound_wq, &entry->work) device_unlock(dev) As above show, when it is allowed to do async probes, because of out of memory or work limit, async work is not be allowed, to do sync execute instead. it will lead to A-A deadlock because of __driver_attach_async_helper getting lock dev. Reproduce: and it can be reproduce by make the condition (if (!entry || atomic_read(&entry_count) > MAX_WORK)) untenable, like below: [ 370.785650] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 370.787154] task:swapper/0 state:D stack: 0 pid: 1 ppid: 0 flags:0x00004000 [ 370.788865] Call Trace: [ 370.789374] <TASK> [ 370.789841] __schedule+0x482/0x1050 [ 370.790613] schedule+0x92/0x1a0 [ 370.791290] schedule_preempt_disabled+0x2c/0x50 [ 370.792256] __mutex_lock.isra.0+0x757/0xec0 [ 370.793158] __mutex_lock_slowpath+0x1f/0x30 [ 370.794079] mutex_lock+0x50/0x60 [ 370.794795] __device_driver_lock+0x2f/0x70 [ 370.795677] ? driver_probe_device+0xd0/0xd0 [ 370.796576] __driver_attach_async_helper+0x1d/0xd0 [ 370.797318] ? driver_probe_device+0xd0/0xd0 [ 370.797957] async_schedule_node_domain+0xa5/0xc0 [ 370.798652] async_schedule_node+0x19/0x30 [ 370.799243] __driver_attach+0x246/0x290 [ 370.799828] ? driver_allows_async_probing+0xa0/0xa0 [ 370.800548] bus_for_each_dev+0x9d/0x130 [ 370.801132] driver_attach+0x22/0x30 [ 370.801666] bus_add_driver+0x290/0x340 [ 370.802246] driver_register+0x88/0x140 [ 370.802817] ? virtio_scsi_init+0x116/0x116 [ 370.803425] scsi_register_driver+0x1a/0x30 [ 370.804057] init_sd+0x184/0x226 [ 370.804533] do_one_initcall+0x71/0x3a0 [ 370.805107] kernel_init_freeable+0x39a/0x43a [ 370.805759] ? rest_init+0x150/0x150 [ 370.806283] kernel_init+0x26/0x230 [ 370.806799] ret_from_fork+0x1f/0x30 To fix the deadlock, move the async_schedule_dev outside device_lock, as we can see, in async_schedule_node_domain, the parameter of queue_work_node is system_unbound_wq, so it can accept concurrent operations. which will also not change the code logic, and will not lead to deadlock.
In the Linux kernel, the following vulnerability has been resolved: PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors If dw_pcie_ep_init() fails to perform any action after the EPC memory is initialized and the MSI memory region is allocated, the latter parts won't be undone thus causing a memory leak. Add a cleanup-on-error path to fix these leaks. [bhelgaas: commit log]
In the Linux kernel, the following vulnerability has been resolved: intel_th: Fix a resource leak in an error handling path If an error occurs after calling 'pci_alloc_irq_vectors()', 'pci_free_irq_vectors()' must be called as already done in the remove function.
In the Linux kernel, the following vulnerability has been resolved: memstick/ms_block: Fix a memory leak 'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time. Add the corresponding bitmap_free() in msb_data_clear().
CVE-2022-50139 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr() __qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr" is released while "mr->info.pbl_table" is not released, which will lead to a memory leak. We should release the "mr->info.pbl_table" with qedr_free_pbl() when error occurs to fix the memory leak.
CVE-2022-50136 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures. Vendor patch is available.
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: fix potential memory leak in setup_base_ctxt() setup_base_ctxt() allocates a memory chunk for uctxt->groups with hfi1_alloc_ctxt_rcv_groups(). When init_user_ctxt() fails, uctxt->groups is not released, which will lead to a memory leak. We should release the uctxt->groups with hfi1_free_ctxt_rcv_groups() when init_user_ctxt() fails.