udf: fix uninit-value use in udf_get_fileshortad
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
exploitation probability
0.3%top 80% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
udf: fix uninit-value use in udf_get_fileshortad
Check for overflow when computing alen in udf_current_aext to mitigate
later uninit-value use in udf_get_fileshortad KMSAN bug[1].
After applying the patch reproducer did not trigger any issue[2].
[1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df
[2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0ce61b1f6b32df822b59c680cbe8e5ba5d335742https://git.kernel.org/stable/c/1ac49babc952f48d82676979b20885e480e69be8https://git.kernel.org/stable/c/264db9d666ad9a35075cc9ed9ec09d021580fbb1https://git.kernel.org/stable/c/417bd613bdbe791549f7687bb1b9b8012ff111c2https://git.kernel.org/stable/c/4fc0d8660e391dcd8dde23c44d702be1f6846c61https://git.kernel.org/stable/c/5eb76fb98b3335aa5cca6a7db2e659561c79c32bhttps://git.kernel.org/stable/c/72e445df65a0aa9066c6fe2b8736ba2fcca6dac7https://git.kernel.org/stable/c/e52e0b92ed31dc62afbda15c243dcee0bb5bb58dhttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.html