dma-buf/sw-sync: don't enable IRQ from sync_print_obj()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-667 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: dma-buf/sw-sync: don't enable IRQ from sync_print_obj() Since commit a6aa8fca4d79 ("dma-buf/sw-sync: Reduce irqsave/irqrestore from known context") by error replaced spin_unlock_irqrestore() with spin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite sync_print_obj() is called from sync_debugfs_show(), lockdep complains inconsistent lock state warning. Use plain spin_{lock,unlock}() for sync_print_obj(), for sync_debugfs_show() is already using spin_{lock,unlock}_irq().
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 | 4.9.68 to before 4.10 | 4.10 | Patch available | CNA |
| Linux | Linux | 4.14 and later | 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.9.4, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 4.9.68 to before 4.10 Fixed in 4.10 Patch available CNA
- Linux VendorLinux Affected 4.14 and later Fixed in 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.9.4, 6.10 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.14; 4.19 to before 4.19.316; 5.4 to before 5.4.278; 5.10 to before 5.10.219; 5.15 to before 5.15.161; 6.1 to before 6.1.93; 6.6 to before 6.6.33; 6.9 to before 6.9.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:* | 6.10.0 rc1 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.14; 4.19 to before 4.19.316; 5.4 to before 5.4.278; 5.10 to before 5.10.219; 5.15 to before 5.15.161; 6.1 to before 6.1.93; 6.6 to before 6.6.33; 6.9 to before 6.9.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:* Versions 6.10.0 rc1 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.10
- Fix · CNA Linux (Linux) Fixed in 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.9.4, 6.10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38780
- 2026-10-03 Alias added: GHSA-rh96-4px7-3vm8
References
Patch 8
- https://git.kernel.org/stable/c/1ff116f68560a25656933d5a18e7619cb6773d8a
- https://git.kernel.org/stable/c/165b25e3ee9333f7b04f8db43895beacb51582ed
- https://git.kernel.org/stable/c/ae6fc4e6a3322f6d1c8ff59150d8469487a73dd8
- https://git.kernel.org/stable/c/9d75fab2c14a25553a1664586ed122c316bd1878
- https://git.kernel.org/stable/c/242b30466879e6defa521573c27e12018276c33a
- https://git.kernel.org/stable/c/a4ee78244445ab73af22bfc5a5fc543963b25aef
- https://git.kernel.org/stable/c/8a283cdfc8beeb14024387a925247b563d614e1e
- https://git.kernel.org/stable/c/b794918961516f667b0c745aebdfebbb8a98df39
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Sources
- CVE-2024-38780 · CVE Program
- CVE-2024-38780 · NVD
- FIRST EPSS
- GHSA-rh96-4px7-3vm8 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38780 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences