CVE-2022-50839: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Linux Linux: from 5.10, before 5.10.150 (fixed in 5.10.150); from 5.11, before 5.15.75 (fixed in 5.15.75); from 5.16, before 5.19.17 (fixed in 5.19.17); from 5.20, before 6.0.3 (fixed in 6.0.3)

Published 2025-12-30. Last modified 2026-06-17.