CVE-2022-50839 | THREATINT

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.

PUBLISHED Reserved 2025-12-30 | Published 2025-12-30 | Updated 2025-12-30 | Assigner Linux

Product status

Default status

unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 7a33dde572fceb45d02d188e0213c47059401c93

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before e7385c868ee038d6a0cb0e85c22d2741e7910fd5

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 68ed9c76b2affd47177b92495446abb7262d0ef7

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 9b073d73725366d886b711b74e058c02f51e7a0e

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a

affected

Default status

affected

5.10.150 (semver)

unaffected

5.15.75 (semver)

unaffected

5.19.17 (semver)

unaffected

6.0.3 (semver)

unaffected

6.1 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/7a33dde572fceb45d02d188e0213c47059401c93

git.kernel.org/...c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5

git.kernel.org/...c/68ed9c76b2affd47177b92495446abb7262d0ef7

git.kernel.org/...c/9b073d73725366d886b711b74e058c02f51e7a0e

git.kernel.org/...c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a

cve.org (CVE-2022-50839)

nvd.nist.gov (CVE-2022-50839)

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