Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 82218943058d5e3fe692a38b5a549479738dab33 before c3c5cfa3170c0940bc66a142859caac07d19b9d6; affected 82218943058d5e3fe692a38b5a549479738dab33 before 5f6a84cfb33b34610623857bd93919dcb661e29b; affected 82218943058d5e3fe692a38b5a549479738dab33 before 3429ef5f50909cee9e498c50f0c499b9397116ce; affected 82218943058d5e3fe692a38b5a549479738dab33 before f54f9d5368a4e92ede7dd078a62788dae3a7c6ef; affected 82218943058d5e3fe692a38b5a549479738dab33 before 35264909e9d1973ab9aaa2a1b07cda70f12bb828 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 5.15.200 through 5.15.*; unaffected 6.1.162 through 6.1.*; unaffected 6.6.37 through 6.6.*; unaffected 6.9.8 through 6.9.*; unaffected 6.10 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c3c5cfa3170c0940bc66a142859caac07d19b9d6
- https://git.kernel.org/stable/c/5f6a84cfb33b34610623857bd93919dcb661e29b
- https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116ce
- https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6ef
- https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.
No English description supplied.