VYPR
Unrated severityNVD Advisory· Published Dec 30, 2025· Updated Apr 15, 2026

CVE-2022-50839

CVE-2022-50839

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.

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Affected products

76

Patches

Vulnerability mechanics

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