Redhat

Memory allocation errors in the Linux kernel's OMAP crypto driver cause scatterlist objects to be undersized by 4x, enabling local authenticated attackers to trigger denial of service conditions through memory corruption. An attacker with local access and user-level privileges can exploit this miscalculation to crash the system or cause unpredictable kernel behavior. No patch is currently available for this vulnerability.

The Linux kernel's fsl-mc bus driver contains a use-after-free vulnerability in the driver_override_show() function that reads device configuration without proper locking, allowing a local privileged user to trigger memory corruption by concurrently modifying the same data. This vulnerability affects Linux systems running vulnerable kernel versions and could enable local denial of service or potential privilege escalation through heap memory manipulation. No patch is currently available for this issue.

The Linux kernel's ksmbd SMB server implementation contains a denial-of-service vulnerability where failed signature verification on chained SMB2 requests causes an infinite loop due to improper state reset. A local or authenticated attacker can trigger this condition by sending a malformed signed request, causing the ksmbd process to hang and become unresponsive.

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Fix potential block overflow that cause system hang When a user executes the FITRIM command, an underflow can occur when calculating nblocks if end_block is too small.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Validate sp before freeing associated memory System crash with the following signature [154563.214890] nvme nvme2: NVME-FC{1}: controller connect complete [154564.169363] qla2xxx [0000:b0:00.1]-3002:2: nvme: Sched: Set ZIO exchange threshold to 3.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Delay module unload while fabric scan in progress System crash seen during load/unload test in a loop.

In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc().

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Avoid creating sub-groups asynchronously The asynchronous creation of sub-groups by a delayed work could lead to a NULL pointer dereference when the driver directory is removed before the work completes.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Free sp in error path to fix system crash System crash seen during load/unload test in a loop, [61110.449331] qla2xxx [0000:27:00.0]-0042:0: Disabled MSI-X.

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix out-of-bounds index in find_empty_iaa_compression_mode The local variable 'i' is initialized with -EINVAL, but the for loop immediately overwrites it and -EINVAL is never returned.

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb->s_fs_info is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb->s_fs_info.

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix alignment fault in rtw_core_enable_beacon() rtw_core_enable_beacon() reads 4 bytes from an address that is not a multiple of 4. This results in a crash on some systems.

Jenkins versions 2.550 and earlier fail to properly validate Run Parameter access controls, allowing authenticated users with Item/Build and Item/Configure permissions to enumerate sensitive information about jobs, builds, and their display names they should not have access to. This information disclosure vulnerability affects Jenkins LTS 2.541.1 and earlier, with no patch currently available. Attackers can exploit this to gather intelligence about build infrastructure by referencing builds outside their authorized scope.

Jenkins versions 2.483-2.550 and LTS 2.492.1-2.541.1 contain a stored XSS vulnerability in the agent offline cause description field that fails to properly sanitize user input. Attackers with Agent/Configure or Agent/Disconnect permissions can inject malicious scripts that execute in the browsers of other users viewing the affected agent configuration. No patch is currently available for this vulnerability.

Memory allocation profiling in the Linux kernel fails to properly clear allocation tags during abort operations when CONFIG_MEM_ALLOC_PROFILING_DEBUG is enabled, allowing a local privileged user to trigger a denial of service through kernel warnings and potential system instability. The vulnerability affects the slab memory allocator's interaction with memcg abort handling and requires local access with elevated privileges to exploit. No patch is currently available for this medium-severity issue.

A null pointer dereference in the Linux kernel's loongson-64bit GPIO driver allows local attackers with user privileges to cause a denial of service through an incorrect NULL check that fails to validate chip->irq.parents after memory allocation. The vulnerability affects Linux systems with Loongson GPIO hardware and requires no user interaction to trigger. No patch is currently available.

A deadlock vulnerability in the Linux kernel's RISC-V tracing subsystem allows local users with tracing privileges to hang the system by enabling ftrace snapshots on __sbi_ecall functions, causing recursive IPI interrupts that trigger infinite snapshot loops. This issue is particularly easy to exploit on RISC-V systems lacking the SSTC extension, where timer events automatically invoke SBI ecalls. The vulnerability requires local access and is only exploitable if tracing is enabled, making it a denial of service vector for systems with active kernel tracing.

A use-after-free vulnerability in the Linux kernel's iSCSI target implementation allows local attackers with low privileges to cause memory corruption and potential denial of service by exploiting a race condition in the connection usage counting mechanism. The flaw occurs when a spinlock is released after calling complete(), allowing a waiting thread to free the connection structure before the current thread finishes its unlock operation. No patch is currently available for this vulnerability.

The Linux kernel's VMware hypercall implementation improperly handles register state during mouse events, allowing local attackers with user privileges to trigger a denial of service through a kernel panic via crafted input to the vmmouse driver. The vulnerability stems from incomplete register preservation when the QEMU VMware mouse emulation clears the upper 32 bits of CPU registers containing kernel pointers. No patch is currently available for this medium-severity issue affecting Linux systems running on VMware or QEMU with vmmouse support.

A denial of service vulnerability in the Linux kernel's btrfs filesystem allows local users with standard privileges to cause a system crash by triggering transaction aborts on read-only mounted filesystems. An attacker can exploit this by mounting a malformed btrfs filesystem with rescue options, causing the kernel to abort transactions with error handling failures during unmount. No patch is currently available for this medium-severity vulnerability.

AMD GPU drivers on Linux systems fail to prevent MMIO register access during SMU Mode 1 reset, allowing incomplete PCIe transactions that can trigger NMI panics or system hangs. A local attacker with driver interaction capabilities could exploit this to cause a denial of service by accessing registers while the device is offline. The vulnerability affects Linux kernel implementations with AMD PM functionality and currently lacks an available patch.

A data-race condition in the Linux kernel bonding driver's slave->last_rx field can be accessed without proper synchronization, potentially causing a denial of service on systems using bonded network interfaces. Local attackers with limited privileges can trigger the race condition to cause system instability or crashes. A patch is not currently available, and exploitation requires specific timing conditions.

Linux kernel swap handling can cause a kernel panic under heavy memory pressure when arch_prepare_to_swap fails due to read-only swap address space restrictions introduced in a prior commit. A local attacker with user privileges can trigger this denial of service condition during memory reclamation operations. No patch is currently available for this medium-severity vulnerability.

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't WARN for connections on invalid channels It's not clear (to me) how exactly syzbot managed to hit this, but it seems conceivable that e.g.

In the Linux kernel, the following vulnerability has been resolved: md: suspend array while updating raid_disks via sysfs In raid1_reshape(), freeze_array() is called before modifying the r1bio memory pool (conf->r1bio_pool) and conf->raid_disks, and unfreeze_array() is called after the update is completed.

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. [CVSS 7.5 HIGH]

Input validation vulnerability in Apache Tomcat affecting versions 11.0.0-M1 through 11.0.14, 10.1.0-M1 through 10.1.34, and 9.0.0.M1 through 9.0.98. Critical severity issue in one of the most widely deployed Java application servers.

Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. [CVSS 7.0 HIGH]

Heap buffer overflow in libvpx affects Firefox and Thunderbird across multiple versions, enabling remote code execution when a user interacts with malicious content. An unauthenticated attacker can exploit this vulnerability over the network without special privileges to achieve complete system compromise including data theft and integrity violations. No patch is currently available, making this a critical risk for affected users.

The Linux kernel's ice driver contains a race condition in PTP (Precision Time Protocol) handling where periodic work can execute while the Virtual Station Interface (VSI) is being rebuilt, causing a NULL pointer dereference when accessing rx_rings. A local attacker with low privileges can trigger this vulnerability to cause a denial of service by crashing the kernel. No patch is currently available for this medium-severity vulnerability.

Local privilege escalation in the Linux kernel macvlan driver allows a local attacker with user privileges to cause memory corruption and kernel crashes through improper error handling in macvlan_common_newlink(). The vulnerability stems from a use-after-free condition when macvlan link creation fails during device registration, enabling denial of service and potential privilege escalation on affected systems.

A buffer overflow in the Linux kernel's ALSA USB audio driver allows local attackers with user privileges to write beyond allocated URB buffers by crafting malicious audio parameters with mismatched packet sizes and frame counts. An attacker can trigger out-of-bounds memory corruption, potentially achieving privilege escalation or denial of service. No patch is currently available for this vulnerability.

The Tegra210-QSPI driver in the Linux kernel is vulnerable to a race condition where an unprotected NULL pointer check in the interrupt handler can be exploited by a local attacker with low privileges to cause a denial of service through kernel panic. The vulnerability occurs when the timeout path clears the curr_xfer pointer while the ISR thread is simultaneously accessing it, resulting in a NULL dereference. A patch is available to resolve this issue by properly synchronizing access with spinlock protection.

A memory leak in the Linux kernel's SMB/CIFS client implementation allows local attackers with unprivileged access to exhaust kernel memory and cause a denial of service by triggering failed file operations on read-only mounted shares. An attacker can exploit this by repeatedly attempting to write files to a read-only CIFS mount, causing memory allocated for SMB requests to not be properly freed. The vulnerability persists until the cifs kernel module is unloaded, and currently lacks a public patch.

The Linux kernel's u32 traffic classifier fails to properly validate negative offset values in skb_header_pointer(), allowing local attackers with low privileges to trigger out-of-bounds memory reads and cause denial of service. This vulnerability affects the network scheduling subsystem and requires local access to exploit, with no currently available patch.

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't clobber irqfd routing type when deassigning irqfd When deassigning a KVM_IRQFD, don't clobber the irqfd's copy of the IRQ's routing entry as doing so breaks kvm_arch_irq_bypass_del_producer() on x86 and arm64, which explicitly look for KVM_IRQ_ROUTING_MSI.

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: avoid pool UAF An UAF issue was observed: BUG: KASAN: slab-use-after-free in page_counter_uncharge+0x65/0x150 Write of size 8 at addr ffff888106715440 by task insmod/527 CPU: 4 UID: 0 PID: 527 Comm: insmod 6.19.0-rc7-next-20260129+ #11 Tainted: [O]=OOT_MODULE Call Trace: <TASK> dump_stack_lvl+0x82/0xd0 kasan_report+0xca/0x100 kasan_check_range+0x39/0x1c0 page_counter_uncharge+0x65/0x150 dmem_cgroup_uncharge+0x1f/0x260 Allocated by task 527: Freed by task 0: The buggy address belongs to the object at ffff888106715400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 64 bytes inside of freed 512-byte region [ffff888106715400, ffff888106715600) The buggy address belongs to the physical page: Memory state around the buggy address: ffff888106715300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888106715380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888106715400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888106715480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888106715500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb The issue occurs because a pool can still be held by a caller after its associated memory region is unregistered.

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() In iscsit_dec_session_usage_count(), the function calls complete() while holding the sess->session_usage_lock.

In the Linux kernel, the following vulnerability has been resolved: linkwatch: use __dev_put() in callers to prevent UAF After linkwatch_do_dev() calls __dev_put() to release the linkwatch reference, the device refcount may drop to 1.

The Linux kernel's ALSA loopback driver contains a use-after-free vulnerability in the PCM trigger callback due to inadequate locking when accessing shared cable state during concurrent stream operations. A local attacker with minimal privileges can trigger this flaw by rapidly opening, closing, and triggering PCM streams, potentially causing kernel crashes or memory corruption. No patch is currently available for this vulnerability.

Memory leak in AMD ASoC PDM DMA operations allows local attackers with user-level privileges to cause denial of service through resource exhaustion on affected Linux systems. The vulnerability persists as no patch is currently available, leaving vulnerable systems at continued risk of system instability or crash from cumulative memory consumption.

A null pointer dereference in the CephFS kernel client's MDS authentication matching function (ceph_mds_auth_match()) allows local attackers with low privileges to cause a denial of service by crashing the kernel when the mds_namespace mount option is not specified. This regression affects Linux kernel versions 6.18-rc1 and later, impacting systems using CephFS with default mount configurations. No patch is currently available for this vulnerability.

The Linux kernel's acpi_power_meter driver contains a deadlock vulnerability in its notify callback function that can cause a denial of service when device removal races with sysfs attribute access. A local user with privileges to trigger power meter notifications can exploit this to hang or crash the system. No patch is currently available.

The Linux kernel iwlwifi driver fails to properly cancel the mlo_scan_start_wk work queue item during disconnection, allowing it to execute after associated data structures are freed or modified. A local attacker with standard user privileges can trigger use-after-free or initialization-after-free memory corruption by manipulating interface state transitions, potentially leading to denial of service or privilege escalation. No patch is currently available.

A use-after-free vulnerability in the Linux kernel's binder subsystem allows local attackers with low privileges to cause memory corruption by accessing transaction objects after they have been freed during frozen target thawing. The flaw exists in binder_netlink_report() which dereferences a transaction pointer following a BR_TRANSACTION_PENDING_FROZEN error, potentially enabling denial of service or local privilege escalation. No patch is currently available.

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation.

In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report() `i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data into `ihid->rawbuf`.

In the Linux kernel, the following vulnerability has been resolved: net: cpsw: Execute ndo_set_rx_mode callback in a work queue Commit 1767bb2d47b7 ("ipv6: mcast: Don't hold RTNL for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.") removed the RTNL lock for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations.

CVE-2025-71223 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures.

In the Linux kernel, the following vulnerability has been resolved: dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue() Add proper locking in mmp_pdma_residue() to prevent use-after-free when accessing descriptor list and descriptor contents.

CVE-2025-71204 is a security vulnerability (CVSS 5.5). Remediation should follow standard vulnerability management procedures.

In the Linux kernel, the following vulnerability has been resolved: riscv: Sanitize syscall table indexing under speculation The syscall number is a user-controlled value used to index into the syscall table.

A null pointer dereference in the Linux kernel's mlx5e TC steering driver allows local attackers with user privileges to cause a denial of service by triggering improper flow deletion logic that attempts to access non-existent device peers. The vulnerability occurs when deleting TC flows without validating peer existence, leading to kernel crashes. No patch is currently available for this medium-severity flaw affecting Linux systems with Mellanox network drivers.

The Linux kernel's t7xx WWAN driver fails to validate the number of page fragments added to network socket buffers during packet reception, allowing excessive fragmentation to overflow the skb_shinfo(skb)->frags[] array and corrupt kernel memory. A local attacker with low privileges could trigger this vulnerability through malicious modem firmware or crafted network packets, potentially causing kernel crashes or undefined behavior. No patch is currently available for this medium-severity issue.

The Linux kernel bonding driver contains a use-after-free vulnerability in the slave device initialization path that allows local attackers with user privileges to cause memory corruption or denial of service. The flaw occurs when slave array updates happen before XDP setup completion, enabling the new slave to be used for transmission before being freed by error cleanup handlers. This affects Debian, Ubuntu, and other Linux distributions running vulnerable kernel versions.

The Linux kernel's imx/tve driver fails to properly release a DDC device reference during probe failure or driver unbind, causing a resource leak that could lead to denial of service through memory exhaustion. Local users with driver interaction capabilities can trigger this leak through probe deferral or module unload operations. No patch is currently available to address this medium-severity vulnerability.

A race condition in the Linux kernel's MPTCP address management function allows local attackers with user-level privileges to cause a denial of service through kernel crashes via improper list manipulation without RCU synchronization. The vulnerability exists in mptcp_pm_nl_flush_addrs_doit() where list_splice_init() is called while holding a spinlock, creating unsafe concurrent access conditions. Currently, no patch is available for this medium-severity vulnerability.

Linux kernel flexible proportions code can cause a denial of service through a deadlock when a hard interrupt fires during a soft interrupt's sequence count operation, allowing a local attacker with limited privileges to hang the system by triggering indefinite loops in proportion calculations. The vulnerability affects the fprop_new_period() function which lacks proper hardirq safety, creating a race condition between timer softirq context and block I/O hardirq handlers. No patch is currently available for this medium-severity issue.

A race condition in the Linux kernel NFC subsystem allows local attackers with low privileges to cause a denial of service by triggering a use-after-free condition between rfkill device unregistration and NCI command queue destruction. An attacker can exploit this by closing a virtual NCI device file while rfkill operations are in progress, causing the kernel to access a destroyed work queue. No patch is currently available for this vulnerability.

A NULL pointer dereference in the Intel ice network driver's ice_vsi_set_napi_queues() function can cause a kernel crash on Linux systems during suspend/resume operations when ring queue vectors are improperly initialized. Local users with standard privileges can trigger this denial of service condition through standard power management operations like systemctl suspend. No patch is currently available for this vulnerability affecting Linux kernel v6.18 and the Intel E810 Ethernet adapter family.

The Linux kernel's Saffirecode (sfc) driver contains a deadlock vulnerability in RSS configuration reading where the driver attempts to acquire a lock that the kernel's ethtool subsystem has already locked, causing the system to hang. A local user with sufficient privileges can trigger this denial of service condition by executing ethtool RSS configuration commands. No patch is currently available for this medium-severity issue.

The Linux kernel's rocker network driver fails to free allocated memory in rocker_world_port_post_fini() when certain callback functions are not implemented, causing a memory leak of approximately 288 bytes per port during device removal. A local attacker with standard user privileges can trigger repeated device removal operations to exhaust kernel memory and cause a denial of service. No patch is currently available for this issue.

The Linux kernel amdgpu graphics driver crashes with a NULL pointer dereference on APU platforms (Raven, Renoir) when SVM page fault recovery attempts to access uninitialized interrupt ring buffers that only exist on discrete GPUs. A local authenticated attacker can trigger this denial of service by enabling retry faults on affected APUs. No patch is currently available.

A double-free vulnerability in the Linux kernel's xe/nvm driver allows local users with low privileges to cause a denial of service or potential code execution through improper memory management during auxiliary device initialization failures. The flaw occurs when auxiliary_device_add() fails and triggers both the release callback and an additional kfree() operation on the same memory region. This affects Linux systems with the xe driver, and no patch is currently available.

A race condition in Linux kernel shmem swap entry handling allows local attackers with user privileges to cause denial of service through memory corruption when swap entries are truncated concurrently with other operations. The vulnerability stems from an unprotected order lookup that can become stale before the actual swap entry removal, potentially causing truncation to erase data beyond intended boundaries. No patch is currently available.

The Linux kernel's octeon_ep driver fails to properly clean up allocated memory and mapped resources when the octep_ctrl_net_init() function fails during device setup, resulting in a local denial of service condition. An authenticated local attacker could trigger this memory leak by causing the initialization to fail, exhausting system memory over time. A patch is not currently available for this vulnerability.

A null pointer dereference in the Linux kernel's perf scheduler functionality causes a denial of service when handling user space stacktraces for certain kernel tasks. Local attackers with low privileges can trigger this crash by exploiting inconsistent task classification logic that fails to properly identify user versus kernel tasks. The vulnerability affects the Linux kernel with no patch currently available.

A use-after-free vulnerability in the Linux kernel's gpio-virtuser configfs release path allows local users with standard privileges to trigger memory corruption and potentially achieve code execution by causing mutex operations on freed memory. The flaw exists because the device structure is freed while a mutex guard scope is still active, leading to undefined behavior when the guard attempts to unlock the already-destroyed mutex. This vulnerability affects Linux systems with the affected kernel versions and requires local access to exploit.

Linux kernel dirty page throttling can cause system hangs when cgroup memory limits are restrictive, as processes become stuck waiting on balance_dirty_pages() io_schedule_timeout() calls. A local user with write permissions can trigger a denial of service by exhausting dirty page limits through intensive file operations, potentially freezing the system. No patch is currently available for affected kernels prior to v6.18.

The Linux kernel's efivarfs implementation fails to propagate errors from __efivar_entry_get(), causing the efivar_entry_get() function to mask failures and return success regardless of the underlying operation's result. This error handling flaw enables uninitialized heap memory to be copied to userspace through the efivarfs_file_read() path, potentially exposing sensitive kernel data to local users with read access to efivarfs. No patch is currently available for this high-severity vulnerability affecting the Linux kernel.

A null pointer dereference in the Linux kernel's gs_usb driver can cause a denial of service when processing malformed USB bulk transfer callbacks, affecting systems with vulnerable CAN interface hardware. Local attackers with unprivileged access can trigger this crash by submitting crafted USB requests that fail resubmission. No patch is currently available for this vulnerability.

GSO segmentation when forwarding GRO packets containing a frag_list. The function skb_segment_list cannot correctly process GRO skbs contains a security vulnerability.

A race condition in the Linux kernel's FireWire core transaction handling allows local attackers with low privileges to cause a denial of service by triggering concurrent processing of AR response and AT request completion events without proper synchronization. The vulnerability stems from transaction list enumeration occurring outside the card lock scope, enabling memory corruption or system crashes when exploited. No patch is currently available for this issue.

The Linux kernel's mac80211 WiFi implementation contains a parsing error when processing TID-To-Link Mapping (TTLM) elements with default link configurations, causing out-of-bounds memory reads. This vulnerability affects systems running vulnerable Linux kernels and could lead to denial of service through kernel crashes or information disclosure. No patch is currently available for this medium-severity issue.

The Linux kernel's Bluetooth MGMT subsystem fails to properly deallocate memory structures in the set_ssp_complete() function, resulting in a memory leak for each completed SSP command. A local attacker with unprivileged user access can exploit this to cause denial of service through memory exhaustion over time. No patch is currently available.

A memory leak in the Linux kernel's NFC LLCP implementation allows local attackers to exhaust memory by exploiting a race condition between the nfc_llcp_send_ui_frame() function and local device cleanup routines. An attacker with local access can trigger the vulnerability by sending NFC frames while the underlying device is being destroyed, causing socket buffers to accumulate in the transmit queue and never be freed.

A local attacker with unprivileged access can trigger kernel warnings in the Linux kernel's DRM subsystem by passing oversized handle values to drm_gem_change_handle_ioctl(), exploiting improper input validation between userspace u32 and kernel int types. This vulnerability affects the Linux kernel and allows denial of service through repeated warning generation, though no patch is currently available.

A race condition in the Linux kernel's NVMe target bio completion handler can cause a NULL pointer dereference when a bio is re-submitted while simultaneously being deinitialized, leading to denial of service on systems running affected kernel versions. Local attackers with access to NVMe target functionality can trigger this race to crash the kernel. A patch is not currently available.

A memory leak in the Linux kernel's btrfs zlib compression module on S390 hardware-accelerated systems fails to properly release file cache pages, potentially leading to memory exhaustion and denial of service on affected systems. The vulnerability stems from missing cleanup code introduced during a refactoring of the S390x hardware acceleration buffer handling. Local attackers with access to the system could trigger the leak through repeated compression operations.

A race condition in the Linux kernel's Bluetooth HCI UART driver allows local attackers with user privileges to trigger a null pointer dereference and cause a denial of service by initiating a TTY write wakeup during driver initialization. The vulnerability occurs when hci_uart_tx_wakeup() schedules write work before the protocol handler's private data structure is initialized, leading to a crash in hci_uart_write_work(). No patch is currently available for this issue.

A resource leak in the Linux kernel's ext4 filesystem implementation fails to properly release buffer head references in the xattr inode update function, potentially causing memory exhaustion on systems with local access. This medium-severity vulnerability affects Linux kernel versions and could allow local attackers to degrade system availability through repeated resource consumption. No patch is currently available.

Linux kernel DAMON sysfs interface fails to properly clean up subdirectories when context setup encounters errors, leaving orphaned directory structures and leaked memory that degrades functionality until system reboot. A local user with appropriate privileges can trigger this condition to cause denial of service by making the DAMON sysfs interface unreliable or unusable. This vulnerability requires local access and user interaction to exploit, with no available patch currently issued.

A memory alignment flaw in the Linux kernel's virtio_net driver allows local attackers with user-level privileges to cause denial of service through misalignment of flexible array members in the virtnet_info structure. The vulnerability results in potential memory corruption when accessing the rss_hash_key_data field, impacting systems running affected Linux kernel versions. No patch is currently available for this medium-severity issue.

Linux kernel DAMON sysfs interface fails to properly clean up access_pattern subdirectories when scheme directory setup fails, causing memory leaks and rendering the sysfs interface non-functional until system reboot. A local privileged user can trigger this condition to degrade system functionality and exhaust memory resources. No patch is currently available for this medium-severity vulnerability.

The Linux kernel's btrfs send functionality fails to validate whether file extent items are inline extents before accessing the disk_bytenr field, potentially causing invalid memory access or metadata corruption on affected systems. A local attacker with file system access could exploit this to trigger a denial of service condition through carefully crafted inline extent items. No patch is currently available for this medium-severity vulnerability.

The Linux kernel's BPF test_run component fails to properly validate XDP frame metadata size, allowing local users with appropriate privileges to specify oversized metadata that exhausts frame headroom and leaves the frame structure uninitialized. This can lead to denial of service or memory corruption during packet transmission. No patch is currently available for this issue.

The Linux kernel netfilter connection tracking module fails to properly manage garbage collection timing, allowing an attacker with local access to bypass cleanup operations and cause unbounded memory consumption on affected systems. By maintaining a sufficiently high packet rate, an attacker can prevent the garbage collector from executing, causing the connection tracking list to grow indefinitely and potentially lead to denial of service. No patch is currently available for this vulnerability.

The Linux kernel's ftrace stack trace recording mechanism lacks proper recursion protection, allowing local users with sufficient privileges to trigger an infinite recursion loop when kernel stack trace triggers are enabled on RCU events, resulting in denial of service through system hang or crash. The vulnerability affects systems where tracing is configured to capture stack traces during RCU event monitoring. No patch is currently available to address this medium-severity defect.

Memory leak in the Linux kernel's device tree unittest module allows local users with standard privileges to cause a denial of service by exhausting system memory when the of_resolve_phandles() function fails during unit test execution. The vulnerability stems from improper resource cleanup in the unittest_data_add() function, where allocated memory is not freed on error paths. A patch is not currently available.

The Linux kernel's libceph library fails to reset sparse-read state machine tracking during OSD connection failures, causing the client to misinterpret new replies as continuations of previous ones. This can lead to the sparse-read machinery entering an unrecoverable failure state, resulting in denial of service through infinite error loops. Local attackers or systems experiencing network faults could exploit this to crash or hang OSD client operations.