linux: In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Co...
CVE-2022-49931 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49931, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The result is a kernel crash. The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen: BUG: kernel NULL pointer dereference, address: 0000000000000030 [...] Call Trace: sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 The fix is to use the correct call to move the list.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.0.8-1 | DEBIAN-CVE-2022-49931 | May 1, 2025 |
| linux · Debian 13.5 (trixie) | 6.0.8-1 | DEBIAN-CVE-2022-49931 | May 1, 2025 |
| linux · Debian 14 | 6.0.8-1 | DEBIAN-CVE-2022-49931 | May 1, 2025 |
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