Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.10.248 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481ePatch
- https://git.kernel.org/stable/c/8cbc3001a3264d998d6b6db3e23f935c158abd4dPatch
- https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14Patch
- https://git.kernel.org/stable/c/e76c78c48902dae6fa612749f59162bca0a79e0bPatch
- https://git.kernel.org/stable/c/e7e1d15d2bd8c373cf621614ddd17971a2132713Patch
FAQ
What is CVE-2022-49168?
CVE-2022-49168 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, ...
How severe is CVE-2022-49168?
CVE-2022-49168 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49168?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.