DEBIAN-CVE-2026-31515
Record from OSV · Published April 22, 2026
In the Linux kernel, the following vulnerability has been resolved: af_key: validate families in pfkey_send_migrate() syzbot was able to trigger a crash in skb_put() [1] Issue is that pfkey_send_migrate() does not check old/new families, and that set_ipsecrequest() @family argument was truncated, thus possibly overfilling the skb. Validate families early, do not wait set_ipsecrequest(). [1] skbuff: skb_over_panic: text:ffffffff8a752120 len:392 put:16 head:ffff88802a4ad040 data:ffff88802a4ad040 tail:0x188 end:0x180 dev:<NULL> kernel BUG at net/core/skbuff.c:214 ! Call Trace: <TASK> skb_over_panic net/core/skbuff.c:219 [inline] skb_put+0x159/0x210 net/core/skbuff.c:2655 skb_put_zero include/linux/skbuff.h:2788 [inline] set_ipsecrequest net/key/af_key.c:3532 [inline] pfkey_send_migrate+0x1270/0x2e50 net/key/af_key.c:3636 km_migrate+0x155/0x260 net/xfrm/xfrm_state.c:2848 xfrm_migrate+0x2140/0x2450 net/xfrm/xfrm_policy.c:4705 xfrm_do_migrate+0x8ff/0xaa0 net/xfrm/xfrm_user.c:3150
Fixed versions
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| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 6.12.85-1 |
| linux | Debian:14 | 6.19.11-1 |
| linux | Debian:12 | 6.1.170-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 6.12.85-1~bpo12+1, 6.12.74-2~bpo12+1, 6.12.74-2 |
| Debian:14 | linux | 6.12.73-1~bpo12+1, 6.12.74-1, 6.12.74-2 |
| Debian:12 | linux | 6.1.153-1, 6.1.158-1, 6.1.159-1 |
Timeline
- Apr 22, 2026 CVE Published
- Oct 15, 2026 CVE Updated
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