Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before caf11dfea5233a69298a1c448bbf8d1639c80536; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before 01ef69785dc3162f588a361ab770b1e312800188; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before a998a7e250bf976539e05a00ec64a81292afecaa; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before 310da27932dd0afe7ce7456dfe1f0814c3301f41; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before 2602f7bb5818e92315feeaeb71d8ce4d5c9ab160; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before 0b68881501460c3761f196469e1e503218c5e536; affected b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 before d114bfdc9b76bf93b881e195b7ec957c14227bab |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.90 through 6.12.*; unaffected 6.18.32 through 6.18.*; unaffected 7.0.9 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca
- https://git.kernel.org/stable/c/caf11dfea5233a69298a1c448bbf8d1639c80536
- https://git.kernel.org/stable/c/01ef69785dc3162f588a361ab770b1e312800188
- https://git.kernel.org/stable/c/a998a7e250bf976539e05a00ec64a81292afecaa
- https://git.kernel.org/stable/c/310da27932dd0afe7ce7456dfe1f0814c3301f41
- https://git.kernel.org/stable/c/2602f7bb5818e92315feeaeb71d8ce4d5c9ab160
- https://git.kernel.org/stable/c/0b68881501460c3761f196469e1e503218c5e536
- https://git.kernel.org/stable/c/d114bfdc9b76bf93b881e195b7ec957c14227bab
ADP enrichment
No English description supplied.