accel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.18.53, 7.2.7
- 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: accel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain struct amdxdna_cmd_chain contains a flexible array annotated with __counted_by(command_count). Since the structure is stored in shared AMDXDNA_BO_SHARE memory, userspace can modify command_count concurrently. If command_count is changed to zero, the bounds check generated from __counted_by may fail and trigger a kernel panic. Remove __counted_by to avoid relying on the userspace-controlled command_count for the flexible array bounds check.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From aac243092b707bb3018e951d470cc1a9bcbaba6c · fixed in 93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a; From aac243092b707bb3018e951d470cc1a9bcbaba6c · fixed in 52f3e086760a9a3e02a46a10b57caffd73b1c204; From aac243092b707bb3018e951d470cc1a9bcbaba6c · fixed in b3709d354545e70388177500761f92d906c4dfd6
- Linux Linux
6.14
- KernelLinux
From 6.14.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7