CVE-2022-50839
jbd2: fix potential buffer head reference count leak
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 30, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ff780b91efe901b8eecd8114785abae5341820ad < 7a33dde572fceb45d02d188e0213c47059401c93 ff780b91efe901b8eecd8114785abae5341820ad < e7385c868ee038d6a0cb0e85c22d2741e7910fd5 ff780b91efe901b8eecd8114785abae5341820ad < 68ed9c76b2affd47177b92495446abb7262d0ef7 ff780b91efe901b8eecd8114785abae5341820ad < 9b073d73725366d886b711b74e058c02f51e7a0e ff780b91efe901b8eecd8114785abae5341820ad < e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a
Linux / Linux
5.10
References
git.kernel.org: https://git.kernel.org/stable/c/7a33dde572fceb45d02d188e0213c47059401c93 git.kernel.org: https://git.kernel.org/stable/c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5 git.kernel.org: https://git.kernel.org/stable/c/68ed9c76b2affd47177b92495446abb7262d0ef7 git.kernel.org: https://git.kernel.org/stable/c/9b073d73725366d886b711b74e058c02f51e7a0e git.kernel.org: https://git.kernel.org/stable/c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a