EUVD-2025-19788CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init() devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7996_mmio_wed_init()
Analysis
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init()
devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference.
Prevent null pointer dereference in mt7996_mmio_wed_init()
Technical Context
A NULL pointer dereference occurs when the application attempts to use a pointer that has not been initialized or has been set to NULL.
Affected Products
Affected products: Linux Linux Kernel
Remediation
A vendor patch is available — apply it immediately. Add NULL checks before pointer dereference operations. Use static analysis to identify potential NULL pointer issues. Enable compiler warnings.
Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | not-affected | - | - |
| bullseye (security) | fixed | 5.10.251-1 | - |
| bookworm | not-affected | - | - |
| bookworm (security) | fixed | 6.1.164-1 | - |
| trixie | fixed | 6.12.73-1 | - |
| trixie (security) | fixed | 6.12.74-2 | - |
| forky | fixed | 6.19.6-2 | - |
| sid | fixed | 6.19.8-1 | - |
| (unstable) | fixed | 6.12.35-1 | - |
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External POC / Exploit Code
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