filelock: fix potential use-after-free in posix_lock_inode
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 15 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: filelock: fix potential use-after-free in posix_lock_inode Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode(). The request pointer had been changed earlier to point to a lock entry that was added to the inode's list. However, before the tracepoint could fire, another task raced in and freed that lock. Fix this by moving the tracepoint inside the spinlock, which should ensure that this doesn't happen.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | 5.4.257 to before 5.4.280; 5.10.197 to before 5.10.222; 5.15.133 to before 5.15.163; 6.1.55 to before 6.1.100; 6.5.5 to before 6.6 | 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6 | Patch available | CNA |
| Linux | Linux | 6.6 and later | 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.4.257 to before 5.4.280; 5.10.197 to before 5.10.222; 5.15.133 to before 5.15.163; 6.1.55 to before 6.1.100; 6.5.5 to before 6.6 Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6 Patch available CNA
- Linux VendorLinux Affected 6.6 and later Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.4.257 to before 5.4.280; 5.10.197 to before 5.10.222; 5.15.133 to before 5.15.163; 6.1.55 to before 6.1.100; 6.6 to before 6.6.41; 6.7 to before 6.9.10 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.4.257 to before 5.4.280; 5.10.197 to before 5.10.222; 5.15.133 to before 5.15.163; 6.1.55 to before 6.1.100; 6.6 to before 6.6.41; 6.7 to before 6.9.10 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6
- Fix · CNA Linux (Linux) Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10
Red Hat 4 advisories
- RHSA-2024:10942 Released 2024-12-11 · Red Hat rating Moderatekernel:5.14.0 security update
- Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.48.1.el9_4, libperf-5.14.0-427.48.1.el9_4
- Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.48.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.48.1.el9_4, kernel-64k-devel-5.14.0-427.48.1.el9_4 +10
- Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.48.1.el9_4, kernel-5.14.0-427.48.1.el9_4, kernel-64k-5.14.0-427.48.1.el9_4 +29
- Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.48.1.el9_4, kernel-rt-core-5.14.0-427.48.1.el9_4, kernel-rt-debug-5.14.0-427.48.1.el9_4 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.48.1.el9_4, kernel-rt-core-5.14.0-427.48.1.el9_4, kernel-rt-debug-5.14.0-427.48.1.el9_4 +11
- RHSA-2024:9315 Released 2024-11-12 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers-5.14.0-503.11.1.el9_5, kernel-tools-libs-devel-5.14.0-503.11.1.el9_5, libperf-5.14.0-503.11.1.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-503.11.1.el9_5, kernel-64k-debug-devel-matched-5.14.0-503.11.1.el9_5, kernel-64k-devel-5.14.0-503.11.1.el9_5 +12
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.4.0-503.11.1.el9_5, kernel-5.14.0-503.11.1.el9_5, kernel-64k-5.14.0-503.11.1.el9_5 +30
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +9
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +11
- RHSA-2024:8613 Released 2024-10-30 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.90.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.90.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.90.1.el9_2, kernel-64k-devel-5.14.0-284.90.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.90.1.el9_2, kernel-5.14.0-284.90.1.el9_2, kernel-64k-5.14.0-284.90.1.el9_2 +29
Show 1 more Red Hat advisories
- RHSA-2024:8614 Released 2024-10-30 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-core-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-debug-5.14.0-284.90.1.rt14.375.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-core-5.14.0-284.90.1.rt14.375.el9_2, kernel-rt-debug-5.14.0-284.90.1.rt14.375.el9_2 +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 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:8613 |
| Red Hat CodeReady Linux Builder EUS (v.9.4) | Fixed | RHSA-2024:10942 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:8613 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2024:10942 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:8613 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.4) | Fixed | RHSA-2024:10942 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2024:8614 |
| Red Hat Enterprise Linux Real Time EUS (v.9.4) | Fixed | RHSA-2024:10942 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2024:8614 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) | Fixed | RHSA-2024:10942 |
Not affected: 6 products
- Red Hat CodeReady Linux Builder (v. 9)
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux AppStream (v. 9)
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
- Red Hat Enterprise Linux AppStream EUS (v.9.4)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41049
- 2026-10-03 Alias added: GHSA-83vm-wg7j-77hw
References
Patch 7
- https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197
- https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b
- https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967
- https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0
- https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a
- https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2
- https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92
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Sources
- CVE-2024-41049 · CVE Program
- CVE-2024-41049 · NVD
- FIRST EPSS
- GHSA-83vm-wg7j-77hw · GitHub Advisory Database · CC BY 4.0
- CVE-2024-41049 · Red Hat security data · CC BY 4.0
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