🛡️ CVE-2023-53280 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue

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

scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue

System crash when qla2x00_start_sp(sp) returns error code EGAIN and wake_up

gets called for uninitialized wait queue sp->nvme_ls_waitq.

qla2xxx [0000:37:00.1]-2121:5: Returning existing qpair of ffff8ae2c0513400 for idx=0

qla2xxx [0000:37:00.1]-700e:5: qla2x00_start_sp failed = 11

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000

PGD 0 P4D 0

Oops: 0000 [#1] SMP NOPTI

Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021

Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]

RIP: 0010:__wake_up_common+0x4c/0x190

RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086

RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000

RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320

RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8

R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20

R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000

FS: 0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

PKRU: 55555554

Call Trace:

__wake_up_common_lock+0x7c/0xc0

qla_nvme_ls_req+0x355/0x4c0 [qla2xxx]

? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc]

? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc]

? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc]

Remove unused nvme_ls_waitq wait queue. nvme_ls_waitq logic was removed

previously in the commits tagged Fixed: below.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2023-53280 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.4.5)
  • linux-kernel (from 6.2 up to 6.4.5)

Timeline and source

Published on 16 September 2025 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2023-53280 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-09-16
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.4.5
linux-kernel 6.2 6.4.5

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