CVE-2022-48715
scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe Running tests with a debug kernel shows that bnx2fc_recv_frame() is modifying the per_cpu lport stats counters in a non-mpsafe way. Just boot a debug kernel and run the bnx2fc driver with the hardware enabled. [ 1391.699147] BUG: using smp_processor_id() in preemptible [00000000] code: bnx2fc_ [ 1391.699160] caller is bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699174] CPU: 2 PID: 4355 Comm: bnx2fc_l2_threa Kdump: loaded Tainted: G B [ 1391.699180] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013 [ 1391.699183] Call Trace: [ 1391.699188] dump_stack_lvl+0x57/0x7d [ 1391.699198] check_preemption_disabled+0xc8/0xd0 [ 1391.699205] bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699215] ? do_raw_spin_trylock+0xb5/0x180 [ 1391.699221] ? bnx2fc_npiv_create_vports.isra.0+0x4e0/0x4e0 [bnx2fc] [ 1391.699229] ? bnx2fc_l2_rcv_thread+0xb7/0x3a0 [bnx2fc] [ 1391.699240] bnx2fc_l2_rcv_thread+0x1af/0x3a0 [bnx2fc] [ 1391.699250] ? bnx2fc_ulp_init+0xc0/0xc0 [bnx2fc] [ 1391.699258] kthread+0x364/0x420 [ 1391.699263] ? _raw_spin_unlock_irq+0x24/0x50 [ 1391.699268] ? set_kthread_struct+0x100/0x100 [ 1391.699273] ret_from_fork+0x22/0x30 Restore the old get_cpu/put_cpu code with some modifications to reduce the size of the critical section.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 3a345198a7c2d1db2526dc60b77052f75de019d3
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 471085571f926a1fe6b1bed095638994dbf23990
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 003bcee66a8f0e76157eb3af369c173151901d97
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 53e4f71763c61a557283eb43301efd671922d1e8
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < ec4334152dae175dbd8fd5bde1d2139bbe7b42d0
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 2f5a1ac68bdf2899ce822ab845081922ea8c588e
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 2d24336c7214b281b51860e54783dfc65f1248df
- affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 – < 936bd03405fc83ba039d42bc93ffd4b88418f1d3
- affected 3.16
- unaffected < 3.16
- unaffected 4.9.300 – ≤ 4.9.*
- unaffected 4.14.265 – ≤ 4.14.*
- unaffected 4.19.228 – ≤ 4.19.*
- unaffected 5.4.178 – ≤ 5.4.*
- unaffected 5.10.99 – ≤ 5.10.*
- unaffected 5.15.22 – ≤ 5.15.*
- unaffected 5.16.8 – ≤ 5.16.*
- unaffected 5.17 – ≤ *
References (8)
- https://git.kernel.org/stable/c/3a345198a7c2d1db2526dc60b77052f75de019d3 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/471085571f926a1fe6b1bed095638994dbf23990 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/003bcee66a8f0e76157eb3af369c173151901d97 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/53e4f71763c61a557283eb43301efd671922d1e8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/ec4334152dae175dbd8fd5bde1d2139bbe7b42d0 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/2f5a1ac68bdf2899ce822ab845081922ea8c588e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/2d24336c7214b281b51860e54783dfc65f1248df (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/936bd03405fc83ba039d42bc93ffd4b88418f1d3 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-48715)Record last updated .