CVE-2024-26791
In the Linux kernel, the following vulnerability has been resolved: btrfs: dev-replace: properly validate device names There's a syzbot report that device name buffers passed to device replace are not properly checked for string termination which could…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: dev-replace: properly validate device names There's a syzbot report that device name buffers passed to device replace are not properly checked for string termination which could lead to a read out of bounds in getname_kernel(). Add a helper that validates both source and target device name buffers. For devid as the source initialize the buffer to empty string in case something tries to read it later. This was originally analyzed and fixed in a different way by Edward Adam Davis (see links).
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/11d7a2e429c02d51e2dc90713823ea8b8d3d3a84Patch
- https://git.kernel.org/stable/c/2886fe308a83968dde252302884a1e63351cf16dPatch
- https://git.kernel.org/stable/c/343eecb4ff49a7b1cc1dfe86958a805cf2341cfbPatch
- https://git.kernel.org/stable/c/9845664b9ee47ce7ee7ea93caf47d39a9d4552c4Patch
- https://git.kernel.org/stable/c/ab2d68655d0f04650bef09fee948ff80597c5fb9Patch
- https://git.kernel.org/stable/c/b1690ced4d2d8b28868811fb81cd33eee5aefee1Patch
- https://git.kernel.org/stable/c/c6652e20d7d783d060fe5f987eac7b5cabe31311Patch
- https://git.kernel.org/stable/c/f590040ce2b712177306b03c2a63b16f7d48d3c8Patch
- https://git.kernel.org/stable/c/11d7a2e429c02d51e2dc90713823ea8b8d3d3a84Patch
- https://git.kernel.org/stable/c/2886fe308a83968dde252302884a1e63351cf16dPatch
- https://git.kernel.org/stable/c/343eecb4ff49a7b1cc1dfe86958a805cf2341cfbPatch
- https://git.kernel.org/stable/c/9845664b9ee47ce7ee7ea93caf47d39a9d4552c4Patch
- https://git.kernel.org/stable/c/ab2d68655d0f04650bef09fee948ff80597c5fb9Patch
- https://git.kernel.org/stable/c/b1690ced4d2d8b28868811fb81cd33eee5aefee1Patch
- https://git.kernel.org/stable/c/c6652e20d7d783d060fe5f987eac7b5cabe31311Patch
- https://git.kernel.org/stable/c/f590040ce2b712177306b03c2a63b16f7d48d3c8Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.