Description
In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsock_update_buffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check overrides the maximum check, inverting the constraint. This breaks the intended socket memory boundaries by allowing the vsk->buffer_size to grow beyond the configured vsk->buffer_max_size. Fix this by checking the minimum first, and then the maximum. This ensures the buffer size never exceeds the buffer_max_size.
Product status
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before caf11dfea5233a69298a1c448bbf8d1639c80536
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before 01ef69785dc3162f588a361ab770b1e312800188
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before a998a7e250bf976539e05a00ec64a81292afecaa
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before 310da27932dd0afe7ce7456dfe1f0814c3301f41
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before 2602f7bb5818e92315feeaeb71d8ce4d5c9ab160
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before 0b68881501460c3761f196469e1e503218c5e536
b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 (git) before d114bfdc9b76bf93b881e195b7ec957c14227bab
5.5
Any version before 5.5
5.10.258 (semver)
5.15.209 (semver)
6.1.175 (semver)
6.6.140 (semver)
6.12.90 (semver)
6.18.32 (semver)
7.0.9 (semver)
7.1-rc1 (original_commit_for_fix)
References
git.kernel.org/...c/f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca
git.kernel.org/...c/caf11dfea5233a69298a1c448bbf8d1639c80536
git.kernel.org/...c/01ef69785dc3162f588a361ab770b1e312800188
git.kernel.org/...c/a998a7e250bf976539e05a00ec64a81292afecaa
git.kernel.org/...c/310da27932dd0afe7ce7456dfe1f0814c3301f41
git.kernel.org/...c/2602f7bb5818e92315feeaeb71d8ce4d5c9ab160
git.kernel.org/...c/0b68881501460c3761f196469e1e503218c5e536
git.kernel.org/...c/d114bfdc9b76bf93b881e195b7ec957c14227bab