Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion Userspace can pass an arbitrary number of BO list entries via the bo_number field. Although the previous multiplication overflow check prevents out-of-bounds allocation, a large number of entries could still cause excessive memory allocation (up to potentially gigabytes) and unnecessarily long list processing times. Introduce a hard limit of 128k entries per BO list, which is more than sufficient for any realistic use case (e.g., a single list containing all buffers in a large scene). This prevents memory exhaustion attacks and ensures predictable performance. Return -EINVAL if the requested entry count exceeds the limit (cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)
Product status
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 (git) before e620378aab78d415bd8a15a2f91c145906520288
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 (git) before 2723e6851309531ce61aed74e93a0cd268cc862a
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 (git) before 5ce4a38e6c2488949e373d5066303f9c128db614
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 (git) before f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 (git) before 6270b1a5dab94665d7adce3dc78bc9066ed28bdd
4.2
Any version before 4.2
6.6.140 (semver)
6.12.86 (semver)
6.18.20 (semver)
6.19.10 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/e620378aab78d415bd8a15a2f91c145906520288
git.kernel.org/...c/2723e6851309531ce61aed74e93a0cd268cc862a
git.kernel.org/...c/5ce4a38e6c2488949e373d5066303f9c128db614
git.kernel.org/...c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
git.kernel.org/...c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd