udf: fix uninit-value use in udf_get_fileshortad
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 5 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: udf: fix uninit-value use in udf_get_fileshortad Check for overflow when computing alen in udf_current_aext to mitigate later uninit-value use in udf_get_fileshortad KMSAN bug[1]. After applying the patch reproducer did not trigger any issue[2]. [1] https://syzkaller.appspot.com/bug?extid=8901c4560b7ab5c2f9df [2] https://syzkaller.appspot.com/x/log.txt?x=10242227980000
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.12 and later | 4.19.323, 5.4.285, 5.10.246, 5.15.170, 6.1.115, 6.6.59, 6.11.6, 6.12 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.12 and later Fixed in 4.19.323, 5.4.285, 5.10.246, 5.15.170, 6.1.115, 6.6.59, 6.11.6, 6.12 Patch available CNA
CPE configurations NVD · 2
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.323, 5.4.285, 5.10.246, 5.15.170, 6.1.115, 6.6.59, 6.11.6, 6.12
Red Hat 1 advisory
- RHSA-2025:6966 Released 2025-05-13 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.12.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.12.1.el9_6, kernel-64k-devel-5.14.0-570.12.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.12.1.el9_6, kernel-64k-5.14.0-570.12.1.el9_6, kernel-64k-core-5.14.0-570.12.1.el9_6 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.12.1.el9_6, libperf-5.14.0-570.12.1.el9_6
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-64k-5.14.0-570.12.1.el9_6, kernel-rt-64k-core-5.14.0-570.12.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-core-5.14.0-570.12.1.el9_6, kernel-rt-debug-5.14.0-570.12.1.el9_6 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:6966 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-50143
- 2026-10-03 Alias added: GHSA-9g24-qqwh-54ww
- 2026-10-29 Affected versions changed · Red Hat
References
Patch 7
- https://git.kernel.org/stable/c/5eb76fb98b3335aa5cca6a7db2e659561c79c32b
- https://git.kernel.org/stable/c/417bd613bdbe791549f7687bb1b9b8012ff111c2
- https://git.kernel.org/stable/c/4fc0d8660e391dcd8dde23c44d702be1f6846c61
- https://git.kernel.org/stable/c/72e445df65a0aa9066c6fe2b8736ba2fcca6dac7
- https://git.kernel.org/stable/c/1ac49babc952f48d82676979b20885e480e69be8
- https://git.kernel.org/stable/c/e52e0b92ed31dc62afbda15c243dcee0bb5bb58d
- https://git.kernel.org/stable/c/264db9d666ad9a35075cc9ed9ec09d021580fbb1
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-50143 · CVE Program
- CVE-2024-50143 · NVD
- FIRST EPSS
- GHSA-9g24-qqwh-54ww · GitHub Advisory Database · CC BY 4.0
- CVE-2024-50143 · Red Hat security data · CC BY 4.0
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