Description
In the Linux kernel, the following vulnerability has been resolved: jbd2: fix potential buffer head reference count leak As in 'jbd2_fc_wait_bufs' if buffer isn't uptodate, will return -EIO without update 'journal->j_fc_off'. But 'jbd2_fc_release_bufs' will release buffer head from ‘j_fc_off - 1’ if 'bh' is NULL will terminal release which will lead to buffer head buffer head reference count leak. To solve above issue, update 'journal->j_fc_off' before return -EIO.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ff780b91efe901b8eecd8114785abae5341820ad to < 7a33dde572fceb45d02d188e0213c47059401c93affectedff780b91efe901b8eecd8114785abae5341820ad to < e7385c868ee038d6a0cb0e85c22d2741e7910fd5affectedff780b91efe901b8eecd8114785abae5341820ad to < 68ed9c76b2affd47177b92495446abb7262d0ef7affectedff780b91efe901b8eecd8114785abae5341820ad to < 9b073d73725366d886b711b74e058c02f51e7a0eaffectedff780b91efe901b8eecd8114785abae5341820ad to < e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8aaffected
Linux Linux
Default version status: affected
5.10affected0 to < 5.10unaffected5.10.150 to ≤ 5.10.*unaffected5.15.75 to ≤ 5.15.*unaffected5.19.17 to ≤ 5.19.*unaffected6.0.3 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7a33dde572fceb45d02d188e0213c47059401c93 ↗
- https://git.kernel.org/stable/c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5 ↗
- https://git.kernel.org/stable/c/68ed9c76b2affd47177b92495446abb7262d0ef7 ↗
- https://git.kernel.org/stable/c/9b073d73725366d886b711b74e058c02f51e7a0e ↗
- https://git.kernel.org/stable/c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a ↗