medium 5.5

CVE-2024-36919 json

scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload

published 2024-05-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-36270

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as these fields won't be used any longer. The offload and upload calls are sequential, hence lock is not required.

This will suppress following BUG_ON():

[ 449.843143] ------------[ cut here ]------------ [ 449.848302] kernel BUG at mm/vmalloc.c:2727! [ 449.853072] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 449.858712] CPU: 5 PID: 1996 Comm: kworker/u24:2 Not tainted 5.14.0-118.el9.x86_64 #1 Rebooting. [ 449.867454] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.3.4 11/08/2016 [ 449.876966] Workqueue: fc_rport_eq fc_rport_work [libfc] [ 449.882910] RIP: 0010:vunmap+0x2e/0x30 [ 449.887098] Code: 00 65 8b 05 14 a2 f0 4a a9 00 ff ff 00 75 1b 55 48 89 fd e8 34 36 79 00 48 85 ed 74 0b 48 89 ef 31 f6 5d e9 14 fc ff ff 5d c3 <0f> 0b 0f 1f 44 00 00 41 57 41 56 49 89 ce 41 55 49 89 fd 41 54 41 [ 449.908054] RSP: 0018:ffffb83d878b3d68 EFLAGS: 00010206 [ 449.913887] RAX: 0000000080000201 RBX: ffff8f4355133550 RCX: 000000000d400005 [ 449.921843] RDX: 0000000000000001 RSI: 0000000000001000 RDI: ffffb83da53f5000 [ 449.929808] RBP: ffff8f4ac6675800 R08: ffffb83d878b3d30 R09: 00000000000efbdf [ 449.937774] R10: 0000000000000003 R11: ffff8f434573e000 R12: 0000000000001000 [ 449.945736] R13: 0000000000001000 R14: ffffb83da53f5000 R15: ffff8f43d4ea3ae0 [ 449.953701] FS: 0000000000000000(0000) GS:ffff8f529fc80000(0000) knlGS:0000000000000000 [ 449.962732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 449.969138] CR2: 00007f8cf993e150 CR3: 0000000efbe10003 CR4: 00000000003706e0 [ 449.977102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 449.985065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 449.993028] Call Trace: [ 449.995756] __iommu_dma_free+0x96/0x100 [ 450.000139] bnx2fc_free_session_resc+0x67/0x240 [bnx2fc] [ 450.006171] bnx2fc_upload_session+0xce/0x100 [bnx2fc] [ 450.011910] bnx2fc_rport_event_handler+0x9f/0x240 [bnx2fc] [ 450.018136] fc_rport_work+0x103/0x5b0 [libfc] [ 450.023103] process_one_work+0x1e8/0x3c0 [ 450.027581] worker_thread+0x50/0x3b0 [ 450.031669] ? rescuer_thread+0x370/0x370 [ 450.036143] kthread+0x149/0x170 [ 450.039744] ? set_kthread_struct+0x40/0x40 [ 450.044411] ret_from_fork+0x22/0x30 [ 450.048404] Modules linked in: vfat msdos fat xfs nfs_layout_nfsv41_files rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver dm_service_time qedf qed crc8 bnx2fc libfcoe libfc scsi_transport_fc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp dcdbas rapl intel_cstate intel_uncore mei_me pcspkr mei ipmi_ssif lpc_ich ipmi_si fuse zram ext4 mbcache jbd2 loop nfsv3 nfs_acl nfs lockd grace fscache netfs irdma ice sd_mod t10_pi sg ib_uverbs ib_core 8021q garp mrp stp llc mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt mxm_wmi fb_sys_fops cec crct10dif_pclmul ahci crc32_pclmul bnx2x drm ghash_clmulni_intel libahci rfkill i40e libata megaraid_sas mdio wmi sunrpc lrw dm_crypt dm_round_robin dm_multipath dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_zero dm_mod linear raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid6_pq libcrc32c crc32c_intel raid1 raid0 iscsi_ibft squashfs be2iscsi bnx2i cnic uio cxgb4i cxgb4 tls [ 450.048497] libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi edd ipmi_devintf ipmi_msghandler [ 450.159753] ---[ end trace 712de2c57c64abc8 ]---

Patch / fix

fixed in 1 distros 6 links 8

Linux Linux 4.19.314, 5.4.276, 5.10.217, 5.15.159, 6.1.91, 6.6.31, 6.8.10, 6.9

debian ubuntu red hat suse almalinux rocky linux

linux Debian 12 6.1.94-1
linux Debian 14, Debian 13 6.8.11-1

debian advisories DEBIAN-CVE-2024-36919

linux Ubuntu 20.04 LTS 5.4.0-192.212
linux Ubuntu 22.04 LTS 5.15.0-118.128
linux Ubuntu 24.04 LTS 6.8.0-40.40
linux-aws Ubuntu 20.04 LTS 5.4.0-1130.140
linux-aws Ubuntu 22.04 LTS 5.15.0-1067.73
linux-aws Ubuntu 24.04 LTS 6.8.0-1013.14
linux-gcp Ubuntu 20.04 LTS 5.4.0-1134.143
linux-gcp Ubuntu 22.04 LTS 5.15.0-1066.74

ubuntu advisories UBUNTU-CVE-2024-36919

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 8 4.18.0-553.22.1.el8_10
perf RHEL 8 4.18.0-553.22.1.el8_10
bpftool RHEL 8 4.18.0-553.22.1.el8_10
kernel-core RHEL 8 4.18.0-553.22.1.el8_10
kernel-tools RHEL 8 4.18.0-553.22.1.el8_10
python3-perf RHEL 8 4.18.0-553.22.1.el8_10
kernel-modules RHEL 8 4.18.0-553.22.1.el8_10
kernel-zfcpdump RHEL 8 4.18.0-553.22.1.el8_10

red hat advisories RHSA-2024:7000

kernel-rt Linux Micro 6.0 6.4.0-9.1
kernel-source-rt Linux Micro 6.0 6.4.0-9.1
kernel-source Linux Micro 6.0 6.4.0-18.1
kernel-default Linux Micro 6.0 6.4.0-18.1
kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1
kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1

suse advisories SUSE-SU-2025:20028-1 SUSE-SU-2025:20008-1 SUSE-SU-2024:2973-1 SUSE-SU-2024:2947-1 SUSE-SU-2024:2940-1 SUSE-SU-2024:2939-1

kernel AlmaLinux 8 4.18.0-553.22.1.el8_10
perf AlmaLinux 8 4.18.0-553.22.1.el8_10
bpftool AlmaLinux 8 4.18.0-553.22.1.el8_10
kernel-core AlmaLinux 8 4.18.0-553.22.1.el8_10
kernel-tools AlmaLinux 8 4.18.0-553.22.1.el8_10
python3-perf AlmaLinux 8 4.18.0-553.22.1.el8_10
kernel-modules AlmaLinux 8 4.18.0-553.22.1.el8_10
kernel-zfcpdump AlmaLinux 8 4.18.0-553.22.1.el8_10

almalinux advisories ALSA-2024:7000

kernel Rocky Linux 8 4.18.0-553.22.1.el8_10

rocky linux advisories RLSA-2024:7000

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-36919 updated 2026-11-07 cvss 4.4

kernel: scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux 8 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +6 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +82 more
affected: no fix available “Fix deferred”
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.22.1.el8_10, kernel 4.18.0-553.22.1.el8_10, bpftool 4.18.0-553.22.1.el8_10, kernel-core 4.18.0-553.22.1.el8_10, kernel-tools 4.18.0-553.22.1.el8_10, python3-perf 4.18.0-553.22.1.el8_10, +15 more Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.22.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.22.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.22.1.el8_10
fixed: vendor fix RHSA-2024:7000
Red Hat OpenShift AI 8 rhoai/odh-rhel8-operator v2.13.1-2, rhoai/odh-dashboard-rhel8 v2.13.1-1, rhoai/odh-modelmesh-rhel8 v2.13.1-1, rhoai/odh-operator-bundle v2.13.1-2, rhoai/odh-rhel8-operator v2.14.0-24, rhoai/odh-dashboard-rhel8 v2.14.0-11, +56 more
fixed: vendor fix RHBA-2024:8413

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-06-07)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux

Classification

Weakness

CWE-667 Improper Locking

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /stable/c/468f3e3c15076338367b0945b041105b67cf31e3
patch
git.kernel.org /stable/c/acd370c1fb86b7302c1cbb354a7c1cd9953768eb
patch
git.kernel.org /stable/c/ad498539dda0816aadef384ec117bfea304c75c3
patch
git.kernel.org /stable/c/93aa5ccc44781bdfef1bf0bc4c2c292d45251312
patch
git.kernel.org /stable/c/1150606d47d711d5bfdf329a1a96ed7027085936
patch
git.kernel.org /stable/c/c885ab23206b1f1ba0731ffe7c9455c6a91db256
patch
git.kernel.org /stable/c/ea50941cd8c9f0b12f38b73d3b1bfeca660dd342
patch
git.kernel.org /stable/c/c214ed2a4dda35b308b0b28eed804d7ae66401f9
patch
lists.debian.org /debian-lts-announce/2024/06/msg00020.html
third-party-advisory
lists.debian.org /debian-lts-announce/2024/06/msg00019.html
third-party-advisory
security.netapp.com /advisory/ntap-20240905-0009/
third-party-advisory

Sources

CVE List CVE-2024-36919
NVD CVE-2024-36919

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary