CVE-2022-50839
Published: Dec 30, 2025
Modified: May 11, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected ff780b91efe901b8eecd8114785abae5341820ad - < 7a33dde572fceb45d02d188e0213c47059401c93affected ff780b91efe901b8eecd8114785abae5341820ad - < e7385c868ee038d6a0cb0e85c22d2741e7910fd5affected ff780b91efe901b8eecd8114785abae5341820ad - < 68ed9c76b2affd47177b92495446abb7262d0ef7affected ff780b91efe901b8eecd8114785abae5341820ad - < 9b073d73725366d886b711b74e058c02f51e7a0eaffected ff780b91efe901b8eecd8114785abae5341820ad - < e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a |
Linux | Linux | affected 5.10unaffected 0 - < 5.10unaffected 5.10.150 - <= 5.10.*unaffected 5.15.75 - <= 5.15.*unaffected 5.19.17 - <= 5.19.*+2 more versions |
References
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