Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 before c0bffbc92a1ca3960fb9cdb8e9f75a68468eb308; affected ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 before 7275dc3bb8f91b23125ff3f47b6529935cf46152; affected ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 before 798733ee5d5788b12e8a52db1519abc17e826f69; affected ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 before 52565a935213cd6a8662ddb8efe5b4219343a25d |
| Linux / Linux | affected 4.6; unaffected 0 before 4.6; unaffected 6.12.43 through 6.12.*; unaffected 6.15.11 through 6.15.*; unaffected 6.16.2 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.