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CVE-2022-49931

IB/hfi1: Correctly move list in sc_disable() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected d997d4e4365f7e59cf6b59c70f966c56d704b64f before 25760a41e3802f54aadcc31385543665ab349b8e; affected d98883f6c33e0d960afedcecaa92fc2b61fec383 before 7c4260f8f188df32414a5ecad63e8b934c2aa3f0; affected 13bac861952a78664907a0f927d3e874e9a59034 before ba95409d6b580501ff6d78efd00064f7df669926; affected 13bac861952a78664907a0f927d3e874e9a59034 before b8bcff99b07cc175a6ee12a52db51cdd2229586c; affected 13bac861952a78664907a0f927d3e874e9a59034 before 1afac08b39d85437187bb2a92d89a741b1078f55; affected 5d33bd6b4d4d035e42733592899918a18f2540da; affected 5.4.157 before 5.4.224; affected 5.10.77 before 5.10.154; affected 5.14.16 before 5.15
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 5.4.224 through 5.4.*; unaffected 5.10.154 through 5.10.*; unaffected 5.15.78 through 5.15.*; unaffected 6.0.8 through 6.0.*; unaffected 6.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.