CVE - CVE-2022-49849

CVE-ID
CVE-2022-49849	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in dev_args_match_device syzkaller found a failed assertion: assertion failed: (args->devid != (u64)-1) \|\| args->missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to (u64)-1 by ioctl. In this case, the match of devid will be skipped and the match of device may succeed incorrectly. Patch 562d7b1512f7 introduced this function which is used to match device. This function contains two matching scenarios, we can distinguish them by checking the value of args->missing rather than check whether args->devid and args->uuid is default value.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001 URL:https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001 MISC:https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b URL:https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b MISC:https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9 URL:https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)