Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using get_cpu() in the tracepoint assignment causes an obvious preempt count leak because nothing invokes put_cpu() to undo it: softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101? This clearly has seen a lot of testing in the last 3+ years... Use smp_processor_id() instead.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
6d4d584a7ea8fc8d2be77545cb503118c193738a to < fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7affected6d4d584a7ea8fc8d2be77545cb503118c193738a to < b7e91827e1cf89cd34ad11dc8f8c010b70ab786eaffected6d4d584a7ea8fc8d2be77545cb503118c193738a to < 9e0f091821571f0da387462803ee42f0bb157582affected6d4d584a7ea8fc8d2be77545cb503118c193738a to < dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561faffected6d4d584a7ea8fc8d2be77545cb503118c193738a to < 4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9affected
Linux Linux
Default version status: affected
6.2affected0 to < 6.2unaffected6.6.136 to ≤ 6.6.*unaffected6.12.77 to ≤ 6.12.*unaffected6.18.17 to ≤ 6.18.*unaffected6.19.7 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/fa5d5baf67f619c7aa70697a194b5a9edd9f5bb7 ↗
- https://git.kernel.org/stable/c/b7e91827e1cf89cd34ad11dc8f8c010b70ab786e ↗
- https://git.kernel.org/stable/c/9e0f091821571f0da387462803ee42f0bb157582 ↗
- https://git.kernel.org/stable/c/dca4ea596a3b0a1b82bc1d9f3e4d88bd9ad9561f ↗
- https://git.kernel.org/stable/c/4b3d54a85bd37ebf2d9836f0d0de775c0ff21af9 ↗