Description
In the Linux kernel, the following vulnerability has been resolved: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to ioq_vector. If request_irq() fails part-way, the rollback loop calls free_irq() with dev_id set to 'oct', which does not match the original dev_id and may leave the irqaction registered. This can keep IRQ handlers alive while ioq_vector is later freed during unwind/teardown, leading to a use-after-free or crash when an interrupt fires. Fix the error path to free IRQs with the same ioq_vector dev_id used during request_irq().
Product status
1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 (git) before aa05a8371ae4a452df623f7202c72409d3c50e40
1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 (git) before aa4c066229b05fc3d3c5f42693d25b1828533b6e
1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 (git) before f93fc5d12d69012788f82151bee55fce937e1432
6.9
Any version before 6.9
6.12.67 (semver)
6.18.7 (semver)
6.19-rc6 (original_commit_for_fix)
References
git.kernel.org/...c/aa05a8371ae4a452df623f7202c72409d3c50e40
git.kernel.org/...c/aa4c066229b05fc3d3c5f42693d25b1828533b6e
git.kernel.org/...c/f93fc5d12d69012788f82151bee55fce937e1432