f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 87% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
It needs to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
to avoid racing with checkpoint, otherwise, filesystem metadata including
blkaddr in dnode, inode fields and .total_valid_block_count may be
corrupted after SPO case.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://git.kernel.org/stable/c/0a4ed2d97cb6d044196cc3e726b6699222b41019https://git.kernel.org/stable/c/329edb7c9e3b6ca27e6ca67ab1cdda1740fb3a2bhttps://git.kernel.org/stable/c/5d47d63883735718825ca2efc4fca6915469774fhttps://git.kernel.org/stable/c/69136304fd144144a4828c7b7b149d0f80321ba4https://git.kernel.org/stable/c/a6e1f7744e9b84f86a629a76024bba8468aa153bhttps://git.kernel.org/stable/c/b5bac43875aa27ec032dbbb86173baae6dce6182