In the Linux kernel, the following vulnerability has been resolved:
xfrm: fix refcount leak in xfrm_migrate_policy_find
syzkaller reported a memory leak in xfrm_policy_alloc:
BUG: memory leak
unreferenced object 0xffff888114d79000 (size 1024):
comm "syz.1.17", pid 931
...
xfrm_policy_alloc+0xb3/0x4b0 net/xfrm/xfrm_policy.c:432
The root cause is a double call to xfrm_pol_hold_rcu() in
xfrm_migrate_policy_find(). The lookup function already returns
a policy with held reference, making the second call redundant.
Remove the redundant xfrm_pol_hold_rcu() call to fix the refcount
imbalance and prevent the memory leak.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
References
Configurations
Configuration 1 (hide)
|
History
19 May 2026, 20:44
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* |
|
| CWE | NVD-CWE-Other | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/21e235a36cfb6d145cefb10728f12f5dc5412f54 - Patch | |
| References | () https://git.kernel.org/stable/c/70c2a89a3bc207c3bfbf6f21bb439809e0a4a27a - Patch | |
| References | () https://git.kernel.org/stable/c/83317cce60a032c49480dcdabe146435bd689d03 - Patch | |
| References | () https://git.kernel.org/stable/c/836ee1b0426ea3db31531e9581cc32f513d24e32 - Patch |
06 May 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 10:16
Updated : 2026-05-19 20:44
NVD link : CVE-2026-43090
Mitre link : CVE-2026-43090
CVE.ORG link : CVE-2026-43090
JSON object : View
Products Affected
linux
- linux_kernel
CWE