Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.18.4, < 5.19 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/5236ada8ebbd9e7461f17477357582f5be4f46f7Patch
- https://git.kernel.org/stable/c/6e73b946a379a1dfbb62626af93843bdfb53753dPatch
- https://git.kernel.org/stable/c/9a74c3e6c0d686c26ba2aab66d15ddb89dc139ccPatch
- https://git.kernel.org/stable/c/9c25faf72d780a9c71081710cd48759d61ff6e9bPatch
- https://git.kernel.org/stable/c/c9ea57c91f03bcad415e1a20113bdb2077bcf990Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
FAQ
What is CVE-2024-49855?
CVE-2024-49855 is a vulnerability with a CVSS score of 7.0 (HIGH). In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to ...
How severe is CVE-2024-49855?
CVE-2024-49855 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-49855?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.