What is CVE-2022-49925?

CVE-2022-49925 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 4.3 onward and patched in 5.4.224, 5.10.154, 5.15.78 and others. CVE-2022-49925 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49925?

CVE-2022-49925 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49925?

Yes, CVE-2022-49925 has been patched. Fixed versions include 5.4.224, 5.10.154, 5.15.78 and others. If you are running Linux kernel 4.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49925 actively exploited?

CVE-2022-49925 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2022-49925

Medium

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() KASAN reported a null-ptr-deref error: KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] CPU: 1 PID: 379 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:destroy_workqueue+0x2f/0x740 RSP: 0018:ffff888016137df8 EFLAGS: 00000202 ... Call Trace: ib_core_cleanup+0xa/0xa1 [ib_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa1a0d221b7 ... It is because the fail of roce_gid_mgmt_init() is ignored: ib_core_init() roce_gid_mgmt_init() gid_cache_wq = alloc_ordered_workqueue # fail ... ib_core_cleanup() roce_gid_mgmt_cleanup() destroy_workqueue(gid_cache_wq) # destroy an unallocated wq Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().

Package Linux Kernel

Published 2025-05-01

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2022-49925 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.3 and later are affected. Fixed in 5.4.224, 5.10.154, 5.15.78, 6.0.8, 6.1 and their respective stable series.

Affected from

≥ 4.3

Fixed in

✓ 5.4.224 5.4.x ✓ 5.10.154 5.10.x ✓ 5.15.78 5.15.x ✓ 6.0.8 6.0.x ✓ 6.1

References

5 total

Kernel Git
https://git.kernel.org/stable/c/07c0d131cc0fe1f3981a42958fc52d573d303d89

Patch
Kernel Git
https://git.kernel.org/stable/c/6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5

Patch
Kernel Git
https://git.kernel.org/stable/c/ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9

Patch
Kernel Git
https://git.kernel.org/stable/c/af8fb5a0600e9ae29950e9422a032c3c22649ee5

Patch
Kernel Git
https://git.kernel.org/stable/c/d360e875c011a005628525bf290322058927e7dc

Patch

Details

CVE ID CVE-2022-49925

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-01

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49925?

CVE-2022-49925 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 4.3 onward and has been patched in 5.4.224, 5.10.154, 5.15.78 and others. CVE-2022-49925 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49925?

CVE-2022-49925 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49925?

Yes. CVE-2022-49925 has been patched. Fixed versions include 5.4.224, 5.10.154, 5.15.78 and others. If you are running Linux kernel 4.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49925 actively exploited?

No. CVE-2022-49925 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.