block: Fix wrong offset in bio_truncate()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.9%
exploitation probability
0.9%top 43% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
block: Fix wrong offset in bio_truncate()
bio_truncate() clears the buffer outside of last block of bdev, however
current bio_truncate() is using the wrong offset of page. So it can
return the uninitialized data.
This happened when both of truncated/corrupted FS and userspace (via
bdev) are trying to read the last of bdev.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6aehttps://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b