CVE-2024-35874
In the Linux kernel, the following vulnerability has been resolved: aio: Fix null ptr deref in aio_complete() wakeup list_del_init_careful() needs to be the last access to the wait queue entry - it effectively unlocks access.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: aio: Fix null ptr deref in aio_complete() wakeup list_del_init_careful() needs to be the last access to the wait queue entry - it effectively unlocks access. Previously, finish_wait() would see the empty list head and skip taking the lock, and then we'd return - but the completion path would still attempt to do the wakeup after the task_struct pointer had been overwritten.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468daPatch
- https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bdPatch
- https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468daPatch
- https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bdPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.