Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ec0467ccbdeb69a86c8729073057bda7bce00eec before d652ef399f131fcd5f8f34266167449ee7c9e5b3; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before 5590cd04d6845c01a6bad985a491c58af6fb5389; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before a11d03d116eef138a7249202bd772c8e61915aec; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before d0559d07afabfddaaded6a61a16154486b956764; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before 2e4d5e8d86a969318340be95470bb76e52392082; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before a133e3caf844a3f56b6eef89ddaa66115874f6bd; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before 1a867d0d79a4a570a33f2f433919ad2bd7a27b67; affected ec0467ccbdeb69a86c8729073057bda7bce00eec before 186615f8855a0be4ee7d3fcd09a8ecc10e783b08 |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 5.10.252 through 5.10.*; unaffected 5.15.202 through 5.15.*; unaffected 6.1.165 through 6.1.*; unaffected 6.6.128 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3
- https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389
- https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec
- https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764
- https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082
- https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd
- https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67
- https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08