Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7e6526404adedf079279aa7aa11722deaca8fe2e before f8f3bb89ab677db15f9f5250c77af728f9afe995; affected 7e6526404adedf079279aa7aa11722deaca8fe2e before 2c41283d94af943a05f7f2cc1a01f0c872f3cf43; affected 7e6526404adedf079279aa7aa11722deaca8fe2e before e62e322ea20be78e346e4b49f9a6b9f03313af4c; affected 7e6526404adedf079279aa7aa11722deaca8fe2e before 58e5735d1a5373652f405a0c16e54ac04aaab0ad; affected 7e6526404adedf079279aa7aa11722deaca8fe2e before 7081d46d32312f1a31f0e0e99c6835a394037599 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 6.6.160 through 6.6.*; unaffected 6.12.83 through 6.12.*; unaffected 6.18.24 through 6.18.*; unaffected 6.19.14 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f8f3bb89ab677db15f9f5250c77af728f9afe995
- https://git.kernel.org/stable/c/2c41283d94af943a05f7f2cc1a01f0c872f3cf43
- https://git.kernel.org/stable/c/e62e322ea20be78e346e4b49f9a6b9f03313af4c
- https://git.kernel.org/stable/c/58e5735d1a5373652f405a0c16e54ac04aaab0ad
- https://git.kernel.org/stable/c/7081d46d32312f1a31f0e0e99c6835a394037599