CVE-2022-50839
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linux7a33dde572fceb45d02d188e0213c47059401c93, e7385c868ee038d6a0cb0e85c22d2741e7910fd5, 68ed9c76b2affd47177b92495446abb7262d0ef7, 9b073d73725366d886b711b74e058c02f51e7a0e, e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | ff780b91efe901b8eecd8114785abae5341820ad ≤ v < 7a33dde572fceb45d02d188e0213c47059401c93, ff780b91efe901b8eecd8114785abae5341820ad ≤ v < e7385c868ee038d6a0cb0e85c22d2741e7910fd5, ff780b91efe901b8eecd8114785abae5341820ad ≤ v < 68ed9c76b2affd47177b92495446abb7262d0ef7, ff780b91efe901b8eecd8114785abae5341820ad ≤ v < 9b073d73725366d886b711b74e058c02f51e7a0e, ff780b91efe901b8eecd8114785abae5341820ad ≤ v < e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a, 5.10 | 7a33dde572fceb45d02d188e0213c47059401c93, e7385c868ee038d6a0cb0e85c22d2741e7910fd5, 68ed9c76b2affd47177b92495446abb7262d0ef7, 9b073d73725366d886b711b74e058c02f51e7a0e, e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a |
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