CVE-2022-49118 [Medium] | Security Vulnerability in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Free irq vectors in order for v3 HW If the driver probe fails to request the channel IRQ or fatal IRQ, the driver will free the IRQ vectors before freeing the IRQs in free_irq(), and this will cause a kernel BUG like this: ------------[ cut here ]------------ kernel BUG at drivers/pci/msi.c:369! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Call trace: free_msi_irqs+0x118/0x13c pci_disable_msi+0xfc/0x120 pci_free_irq_vectors+0x24/0x3c hisi_sas_v3_probe+0x360/0x9d0 [hisi_sas_v3_hw] local_pci_probe+0x44/0xb0 work_for_cpu_fn+0x20/0x34 process_one_work+0x1d0/0x340 worker_thread+0x2e0/0x460 kthread+0x180/0x190 ret_from_fork+0x10/0x20 ---[ end trace b88990335b610c11 ]--- So we use devm_add_action() to control the order in which we free the vectors.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.01%	0.25%	+0.23%
2	2026-04-12	0.08%	0.01%	-0.07%
3	2026-04-06	—	0.08%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.01%

0.25%

+0.23%

2026-04-12

0.08%

0.01%

-0.07%

2026-04-06

—

0.08%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

3.6

[email protected]

OS Trackers for CVE-2022-49118

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-49118 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-49118
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2022-49118
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2022-49118/
`ubuntu`	medium	CVE-2022-49118 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, ignored 150, released 108, not-affected 106, needed 42.	https://ubuntu.com/security/CVE-2022-49118

Affected software / configurations for CVE-2022-49118

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 4.5, < 5.10.111	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.11, < 5.15.34	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 5.16.20	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.17, < 5.17.3	cpe:2.3:o:linux:linux_kernel::::::::

References for CVE-2022-49118

URL	Tags
https://git.kernel.org/stable/c/224903cc60d045576393c3b16907742f23e6c740	Patch
https://git.kernel.org/stable/c/554fb72ee34f4732c7f694f56c3c6e67790352a0	Patch
https://git.kernel.org/stable/c/8b6eab9d683bae7f88dc894b8c851f866032301c	Patch
https://git.kernel.org/stable/c/b4cc04fa8f1fc3816c8494d77abab3f72b9d2292	Patch
https://git.kernel.org/stable/c/f05a0d8de2ea49af36821a20b0b501e20ced937e	Patch

URL

CVE-2022-49118 | scsi: hisi_sas: Free irq vectors in order for v3 HW

Exploit prediction scoring system (EPSS) score for CVE-2022-49118

Common vulnerability scoring system (CVSS) metrics for CVE-2022-49118

Weakness enumeration for CVE-2022-49118

OS Trackers for CVE-2022-49118

Affected software / configurations for CVE-2022-49118

References for CVE-2022-49118