CVE-2024-38780: dma-buf/sw-sync: don't enable IRQ from sync_print_obj()
First published: Fri Jun 21 2024(Updated: )
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().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <4.14 | |
| Linux Kernel | >=4.19<4.19.316 | |
| Linux Kernel | >=5.4<5.4.278 | |
| Linux Kernel | >=5.10<5.10.219 | |
| Linux Kernel | >=5.15<5.15.161 | |
| Linux Kernel | >=6.1<6.1.93 | |
| Linux Kernel | >=6.6<6.6.33 | |
| Linux Kernel | >=6.9<6.9.4 | |
| Linux Kernel | =6.10.0-rc1 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 |
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Reference Links
- https://git.kernel.org/stable/c/165b25e3ee9333f7b04f8db43895beacb51582ed
- https://git.kernel.org/stable/c/1ff116f68560a25656933d5a18e7619cb6773d8a
- https://git.kernel.org/stable/c/242b30466879e6defa521573c27e12018276c33a
- https://git.kernel.org/stable/c/8a283cdfc8beeb14024387a925247b563d614e1e
- https://git.kernel.org/stable/c/9d75fab2c14a25553a1664586ed122c316bd1878
- https://git.kernel.org/stable/c/a4ee78244445ab73af22bfc5a5fc543963b25aef
- https://git.kernel.org/stable/c/ae6fc4e6a3322f6d1c8ff59150d8469487a73dd8
- https://git.kernel.org/stable/c/b794918961516f667b0c745aebdfebbb8a98df39
- https://launchpad.net/bugs/cve/CVE-2024-38780
- https://git.kernel.org/linus/b794918961516f667b0c745aebdfebbb8a98df39
- https://security-tracker.debian.org/tracker/CVE-2024-38780
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38780
- https://nvd.nist.gov/vuln/detail/CVE-2024-38780
- https://ubuntu.com/security/CVE-2024-38780
Frequently Asked Questions
What is the severity of CVE-2024-38780?
The severity of CVE-2024-38780 is classified based on its potential impact on system stability and security, requiring evaluation by system administrators.
How do I fix CVE-2024-38780?
To fix CVE-2024-38780, upgrade the Linux kernel to one of the secure versions such as 5.10.223-1 or above, as well as other specified patched versions.
What systems are affected by CVE-2024-38780?
CVE-2024-38780 affects multiple versions of the Linux kernel, specifically versions prior to 4.14 and between 4.19.0 and 6.9.4.
Can CVE-2024-38780 be exploited remotely?
CVE-2024-38780 may allow local escalation of privileges, but it is typically not exploitable remotely without prior access.
What are the potential consequences of CVE-2024-38780 if left unpatched?
If left unpatched, CVE-2024-38780 can lead to system instability and potential unauthorized access by local users.
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