CVE-2024-40902
In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). 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: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging. But when that xattr size is bigger than the expected size, printing it out can cause an access off the end of the buffer. Fix this all up by properly restricting the size of the debug hex dump in the kernel log.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-121
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83aPatch
- https://git.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123Patch
- https://git.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69Patch
- https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7Patch
- https://git.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0fPatch
- https://git.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873fPatch
- https://git.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549fPatch
- https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0Patch
- https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83aPatch
- https://git.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123Patch
- https://git.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69Patch
- https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7Patch
- https://git.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0fPatch
- https://git.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873fPatch
- https://git.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549fPatch
- https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.