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PUBLISHED

CVE-2024-26791

btrfs: dev-replace: properly validate device names

Reserved:2024-02-19
Published:2024-04-04
Updated:2024-04-04

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).

Product status

Default status
unaffected

1da177e4c3f4 before 11d7a2e429c0
affected

1da177e4c3f4 before c6652e20d7d7
affected

1da177e4c3f4 before 2886fe308a83
affected

1da177e4c3f4 before ab2d68655d0f
affected

1da177e4c3f4 before f590040ce2b7
affected

1da177e4c3f4 before b1690ced4d2d
affected

1da177e4c3f4 before 343eecb4ff49
affected

1da177e4c3f4 before 9845664b9ee4
affected

Default status
affected

4.19.309
unaffected

5.4.271
unaffected

5.10.212
unaffected

5.15.151
unaffected

6.1.81
unaffected

6.6.21
unaffected

6.7.9
unaffected

6.8
unaffected

References

https://git.kernel.org/stable/c/11d7a2e429c02d51e2dc90713823ea8b8d3d3a84

https://git.kernel.org/stable/c/c6652e20d7d783d060fe5f987eac7b5cabe31311

https://git.kernel.org/stable/c/2886fe308a83968dde252302884a1e63351cf16d

https://git.kernel.org/stable/c/ab2d68655d0f04650bef09fee948ff80597c5fb9

https://git.kernel.org/stable/c/f590040ce2b712177306b03c2a63b16f7d48d3c8

https://git.kernel.org/stable/c/b1690ced4d2d8b28868811fb81cd33eee5aefee1

https://git.kernel.org/stable/c/343eecb4ff49a7b1cc1dfe86958a805cf2341cfb

https://git.kernel.org/stable/c/9845664b9ee47ce7ee7ea93caf47d39a9d4552c4

cve.org CVE-2024-26791

nvd.nist.gov CVE-2024-26791

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