Tracker / CVE-2022-49307
CVE-2022-49307
In the Linux kernel, the following vulnerability has been resolved: tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() When the driver fails at alloc_hdlcdev(), and then we remove the driver module, we will get the following splat: [ 25.065966] general protection fault, probably for non-canonical address 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN PTI [ 25.066914] KASAN: null-ptr-deref in range [0x0000000000000c10-0x0000000000000c17] [ 25.069262] RIP: 0010:detach_hdlc_protocol+0x2a/0x3e0 [ 25.077709] Call Trace: [ 25.077924] <TASK> [ 25.078108] unregister_hdlc_device+0x16/0x30 [ 25.078481] slgt_cleanup+0x157/0x9f0 [synclink_gt] Fix this by checking whether the 'info->netdev' is a null pointer first.
Prodotti e versioni affette
| linux | linux_kernel · … → 4.9.318 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.283 |
| linux | linux_kernel · 4.15 → 4.19.247 |
| linux | linux_kernel · 4.20 → 5.4.198 |
| linux | linux_kernel · 5.11 → 5.15.47 |
| linux | linux_kernel · 5.16 → 5.17.15 |
| linux | linux_kernel · 5.18 → 5.18.4 |
| linux | linux_kernel · 5.5 → 5.10.122 |