CVE-2024-41049
In the Linux kernel, the following vulnerability has been resolved: filelock: fix potential use-after-free in posix_lock_inode Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode().
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: filelock: fix potential use-after-free in posix_lock_inode Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode(). The request pointer had been changed earlier to point to a lock entry that was added to the inode's list. However, before the tracepoint could fire, another task raced in and freed that lock. Fix this by moving the tracepoint inside the spinlock, which should ensure that this doesn't happen.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.28% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967Patch
- https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2Patch
- https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92Patch
- https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197Patch
- https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6aPatch
- https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0Patch
- https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58bPatch
- https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967Patch
- https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2Patch
- https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92Patch
- https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197Patch
- https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6aPatch
- https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0Patch
- https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58bPatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.