CVE-2024-39498: drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2
First published: Fri Jul 12 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2 [Why] Commit: - commit 5aa1dfcdf0a4 ("drm/mst: Refactor the flow for payload allocation/removement") accidently overwrite the commit - commit 54d217406afe ("drm: use mgr->dev in drm_dbg_kms in drm_dp_add_payload_part2") which cause regression. [How] Recover the original NULL fix and remove the unnecessary input parameter 'state' for drm_dp_add_payload_part2(). (cherry picked from commit 4545614c1d8da603e57b60dd66224d81b6ffc305)
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=6.7<6.9.6 | |
| redhat/kernel | <6.9.6 | 6.9.6 |
| redhat/kernel | <6.10 | 6.10 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/5a507b7d2be15fddb95bf8dee01110b723e2bcd9
- https://git.kernel.org/stable/c/8e21de5f99b2368a5155037ce0aae8aaba3f5241
- https://launchpad.net/bugs/cve/CVE-2024-39498
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39498
- https://nvd.nist.gov/vuln/detail/CVE-2024-39498
- https://security-tracker.debian.org/tracker/CVE-2024-39498
- https://ubuntu.com/security/CVE-2024-39498
- https://git.kernel.org/linus/5a507b7d2be15fddb95bf8dee01110b723e2bcd9
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2297470
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