CVE-2022-50555

CVE-2022-50555 (Linux kernel tipc_topsrv_accept) has a concrete fix across multiple advisories. The issue allowed a null pointer dereference when srv->listener could be NULL if tipc_topsrv_stop() ran concurrently with tipc_topsrv_accept. The patch adds a protection: check srv->listener unde...

kernel: tipc: fix a null-ptr-deref in tipc_topsrv_accept

In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipctopsrvaccept syzbot found a crash in tipctopsrvaccept: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f Workqueue: tipcrcv tipctopsrvaccept RIP: 0010:kernelaccept+0x22d/0x350...