CVE-2024-42287

scsi: qla2xxx: Complete command early within lock

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Complete command early within lock A crash was observed while performing NPIV and FW reset, BUG: kernel NULL pointer dereference, address: 000000000000001c #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 1 PREEMPT_RT SMP NOPTI RIP: 0010:dma_direct_unmap_sg+0x51/0x1e0 RSP: 0018:ffffc90026f47b88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000021 RCX: 0000000000000002 RDX: 0000000000000021 RSI: 0000000000000000 RDI: ffff8881041130d0 RBP: ffff8881041130d0 R08: 0000000000000000 R09: 0000000000000034 R10: ffffc90026f47c48 R11: 0000000000000031 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8881565e4a20 R15: 0000000000000000 FS: 00007f4c69ed3d00(0000) GS:ffff889faac80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000001c CR3: 0000000288a50002 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die_body+0x1a/0x60 ? page_fault_oops+0x16f/0x4a0 ? do_user_addr_fault+0x174/0x7f0 ? exc_page_fault+0x69/0x1a0 ? asm_exc_page_fault+0x22/0x30 ? dma_direct_unmap_sg+0x51/0x1e0 ? preempt_count_sub+0x96/0xe0 qla2xxx_qpair_sp_free_dma+0x29f/0x3b0 [qla2xxx] qla2xxx_qpair_sp_compl+0x60/0x80 [qla2xxx] __qla2x00_abort_all_cmds+0xa2/0x450 [qla2xxx] The command completion was done early while aborting the commands in driver unload path but outside lock to avoid the WARN_ON condition of performing dma_free_attr within the lock. However this caused race condition while command completion via multiple paths causing system crash. Hence complete the command early in unload path but within the lock to avoid race condition.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/af46649304b0c9cede4ccfc2be2561ce8ed6a2ea patch
https://git.kernel.org/stable/c/57ba7563712227647f82a92547e82c96cd350553 patch
https://git.kernel.org/stable/c/9117337b04d789bd08fdd9854a40bec2815cd3f6 patch
https://git.kernel.org/stable/c/814f4a53cc86f7ea8b501bfb1723f24fd29ef5ee patch
https://git.kernel.org/stable/c/314efe3f87949a568f512f05df20bf47b81cf232 patch
https://git.kernel.org/stable/c/36fdc5319c4d0ec8b8938ec4769764098a246bfb patch
https://git.kernel.org/stable/c/4475afa2646d3fec176fc4d011d3879b26cb26e3 patch

Frequently Asked Questions

What is the severity of CVE-2024-42287?
CVE-2024-42287 has been scored as a medium severity vulnerability.
How to fix CVE-2024-42287?
To fix CVE-2024-42287, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42287 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-42287 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42287?
CVE-2024-42287 affects Linux Linux, Linux Linux.
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