CVE-2022-48715

scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe

MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 11 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < 3a345198a7c2d1db2526dc60b77052f75de019d3 ; affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < 471085571f926a1fe6b1bed095638994dbf23990 ; affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < 003bcee66a8f0e76157eb3af369c173151901d97 ; affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < 53e4f71763c61a557283eb43301efd671922d1e8 ; affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < ec4334152dae175dbd8fd5bde1d2139bbe7b42d0 ; affected d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 < 2f5a1ac68bdf2899ce822ab845081922ea8c588e
Linux · Linuxaffected 3.16 ; unaffected 0 < 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.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD