Description
In the Linux kernel, the following vulnerability has been resolved: net: kcm: Fix race condition in kcm_unattach() syzbot found a race condition when kcm_unattach(psock) and kcm_release(kcm) are executed at the same time. kcm_unattach() is missing a check of the flag kcm->tx_stopped before calling queue_work(). If the kcm has a reserved psock, kcm_unattach() might get executed between cancel_work_sync() and unreserve_psock() in kcm_release(), requeuing kcm->tx_work right before kcm gets freed in kcm_done(). Remove kcm->tx_stopped and replace it by the less error-prone disable_work_sync().
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
ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 to < c0bffbc92a1ca3960fb9cdb8e9f75a68468eb308affectedab7ac4eb9832e32a09f4e8042705484d2fb0aad3 to < 7275dc3bb8f91b23125ff3f47b6529935cf46152affectedab7ac4eb9832e32a09f4e8042705484d2fb0aad3 to < 798733ee5d5788b12e8a52db1519abc17e826f69affectedab7ac4eb9832e32a09f4e8042705484d2fb0aad3 to < 52565a935213cd6a8662ddb8efe5b4219343a25daffected
Linux Linux
Default version status: affected
4.6affected0 to < 4.6unaffected6.12.43 to ≤ 6.12.*unaffected6.15.11 to ≤ 6.15.*unaffected6.16.2 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected