In the Linux kernel, the following vulnerability has been resolved:
xfrm: account XFRMA_IF_ID in aevent size calculation
xfrm_get_ae() allocates the reply skb with xfrm_aevent_msgsize(), then
build_aevent() appends attributes including XFRMA_IF_ID when x->if_id is
set.
xfrm_aevent_msgsize() does not include space for XFRMA_IF_ID. For states
with if_id, build_aevent() can fail with -EMSGSIZE and hit BUG_ON(err < 0)
in xfrm_get_ae(), turning a malformed netlink interaction into a kernel
panic.
Account XFRMA_IF_ID in the size calculation unconditionally and replace
the BUG_ON with normal error unwinding.
References
Configurations
Configuration 1 (hide)
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History
11 May 2026, 17:30
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/2c41283d94af943a05f7f2cc1a01f0c872f3cf43 - Patch | |
| References | () https://git.kernel.org/stable/c/58e5735d1a5373652f405a0c16e54ac04aaab0ad - Patch | |
| References | () https://git.kernel.org/stable/c/7081d46d32312f1a31f0e0e99c6835a394037599 - Patch | |
| References | () https://git.kernel.org/stable/c/e62e322ea20be78e346e4b49f9a6b9f03313af4c - Patch | |
| 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 | CWE-131 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
06 May 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 10:16
Updated : 2026-05-11 17:30
NVD link : CVE-2026-43107
Mitre link : CVE-2026-43107
CVE.ORG link : CVE-2026-43107
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-131
Incorrect Calculation of Buffer Size