CVE-2024-42079gfs2: Fix NULL pointer dereference in gfs2_log_flush
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 82218943058d5e3fe692a38b5a549479738dab33 before c3c5cfa3170c0940bc66a142859caac07d19b9d6; 82218943058d5e3fe692a38b5a549479738dab33 builds before 5f6a84cfb33b34610623857bd93919dcb661e29b; 82218943058d5e3fe692a38b5a549479738dab33 builds before 3429ef5f50909cee9e498c50f0c499b9397116ce; from 82218943058d5e3fe692a38b5a549479738dab33 before f54f9d5368a4e92ede7dd078a62788dae3a7c6ef; 82218943058d5e3fe692a38b5a549479738dab33 builds before 35264909e9d1973ab9aaa2a1b07cda70f12bb828 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | before 6.6.37; from 6.7 before 6.9.8 | NVD |
References
- https://git.kernel.org/stable/c/c3c5cfa3170c0940bc66a142859caac07d19b9d6patch
- https://git.kernel.org/stable/c/5f6a84cfb33b34610623857bd93919dcb661e29bpatch
- https://git.kernel.org/stable/c/3429ef5f50909cee9e498c50f0c499b9397116cepatch
- https://git.kernel.org/stable/c/f54f9d5368a4e92ede7dd078a62788dae3a7c6efpatch
- https://git.kernel.org/stable/c/35264909e9d1973ab9aaa2a1b07cda70f12bb828patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.