CVE-2024-26791

Summary

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).

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < 11d7a2e429c02d51e2dc90713823ea8b8d3d3a84affected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < c6652e20d7d783d060fe5f987eac7b5cabe31311affected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < 2886fe308a83968dde252302884a1e63351cf16daffected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < ab2d68655d0f04650bef09fee948ff80597c5fb9affected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < f590040ce2b712177306b03c2a63b16f7d48d3c8affected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < b1690ced4d2d8b28868811fb81cd33eee5aefee1affected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < 343eecb4ff49a7b1cc1dfe86958a805cf2341cfbaffected
LinuxLinuxe93c89c1aaaaaec3487c4c18dd02360371790722 < 9845664b9ee47ce7ee7ea93caf47d39a9d4552c4affected
LinuxLinux3.8affected
LinuxLinux0 < 3.8unaffected
LinuxLinux4.19.309 <= 4.19.*unaffected
LinuxLinux5.4.271 <= 5.4.*unaffected
LinuxLinux5.10.212 <= 5.10.*unaffected
LinuxLinux5.15.151 <= 5.15.*unaffected
LinuxLinux6.1.81 <= 6.1.*unaffected
LinuxLinux6.6.21 <= 6.6.*unaffected
LinuxLinux6.7.9 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References