CVE-2026-68257
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/amdkfd: fix 32-bit overflow in CWSR total size calculation
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation total_cwsr_size was computed in 32-bit before being used as a BO/SVM allocation size. With large ctx_save_restore_area_size and debug_memory_size multiplied by the XCC count, the product can wrap, yielding an undersized CWSR save area that firmware later overruns. Promote total_cwsr_size to u64 and use check_add_overflow()/ check_mul_overflow() in both kfd_queue_acquire_buffers() and kfd_queue_release_buffers(). (cherry picked from commit 319f7e13423ae3f486b9aea82f9ad2d6af0ee608)
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 325aa07165394b8e866ffe9ec1d4c99d9195b2f2 | affected | git | b88ffe6593607364a8c06a48c6f29e55437cdf8e | Unavailable | None listed |
| d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 | affected | git | abce3276c57e36c955627307469b9f009057a467 | Unavailable | None listed |
| d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 | affected | git | 865532d54eb57b660b1cb1b0e1755776ce21b849 | Unavailable | None listed |
| d15deafab5d722afb9e2f83c5edcdef9d9d98bd1 | affected | git | 2b0386d4293920e690c0e017708f999b93cc729b | Unavailable | None listed |
| 63600103d2ac5c09fdeec5b931b396e4e0efd5d8 | affected | git | Unavailable | Unavailable | None listed |
| 6.12.59 | affected | semver | 6.12.101 | Unavailable | None listed |
| 6.17.9 | affected | semver | 6.18 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.18 | Unavailable | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |