drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5
- 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
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm The cleanup tail of kfd_criu_resume_svm() walks svms->criu_svm_metadata_list and kfree()s each struct criu_svm_metadata without removing it from the list. The list head is left pointing at freed kmalloc-96 objects. A second AMDKFD_IOC_CRIU_OP from the same process re-enters: list_empty() reads the dangling ->next (use-after-free), the loop walks freed entries, and each is kfree()'d again (double-free). This is reachable by an unprivileged render-group user via /dev/kfd with no capabilities required. Add list_del() before the kfree() so the list is properly emptied. The list_for_each_entry_safe() iterator already caches the next pointer, so unlinking during the walk is safe. (cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in c8a8d350a273c005a48c64c4519d21b2a51c5ceb; From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in 506e635aed05dbdeef11e3c59f6e42980cda5b6d; From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in 838b57b3e7ce8cce0fda56d0861add3d464dd6c8; From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in 96ac562a9ea3020981f536384711190841c81aa8; From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in e33a3bd5cb8d0cf1557dee014115f812c9686130; From 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba · fixed in 8fa5655da368d0306c03e9dc9cda8ae2a7840926
- Linux Linux
5.18
- KernelLinux
From 5.18.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5