drm/panthor: harden firmware build-info bounds checks
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.51, 7.2.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: harden firmware build-info bounds checks panthor_fw_read_build_info() checks whether the metadata range fits in the firmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so the addition can wrap and let an out-of-bounds range pass validation. The function also reads the "git_sha: " prefix without first checking that the metadata is long enough, and meta_size == 0 can underflow the NULL terminator index. Use subtraction-based bounds checking and reject metadata that is too short to contain the expected prefix and trailing NULL byte.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 2718d91816eeed03c09c8abe872e45f59078768c · fixed in 5516f1acfd07564361cf306cc90a8e513df0f096; From 2718d91816eeed03c09c8abe872e45f59078768c · fixed in 6ae19dce3e8c13ae73590b3f4311abe9f96bbae8; From 2718d91816eeed03c09c8abe872e45f59078768c · fixed in 8321b093fa6c297b80586460ce6914d9655df170
- Linux Linux
6.10
- KernelLinux
From 6.10.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5