Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vxlan: use neigh_ha_snapshot() in route_shortcircuit() The neighbour hardware address n->ha can be updated asynchronously by the neighbour subsystem, protected by n->ha_lock seqlock. Reading n->ha without holding the seqlock loop can lead to torn reads or reading a partially updated MAC address. Use neigh_ha_snapshot() in route_shortcircuit() to safely copy n->ha under read_seqbegin()/read_seqretry() lock protection before using it. Note that arp_reduce() and neigh_reduce() seem to have the same issue left for future patches.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e4f67addf158f98f8197e08974966b18480dc751 before 32a9590a8d30426e3db63e6b20893e47e02576c0; affected e4f67addf158f98f8197e08974966b18480dc751 before d0993fc053f29e15cc7c9fe2029df3882a2ab5ab; affected e4f67addf158f98f8197e08974966b18480dc751 before 87210054bad82bbae6f483a742dc45722fb47a6b; affected e4f67addf158f98f8197e08974966b18480dc751 before d08e8ac13f2e228cc7fc3c70b5ebe71557b624a0; affected e4f67addf158f98f8197e08974966b18480dc751 before ec341bb76d77b4c2948764375ee6bfeef4bb41c3; affected e4f67addf158f98f8197e08974966b18480dc751 before ff89415d34c3ab9f5312316423122e664ed3524f; affected e4f67addf158f98f8197e08974966b18480dc751 before 05f2987f73daa05333fd713d05546142f9f7c5f0; affected e4f67addf158f98f8197e08974966b18480dc751 before 8eca411347e1d38964f9ed2c8d3b6ab0e7e4473d |
| Linux / Linux | affected 3.8; unaffected 0 before 3.8; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/32a9590a8d30426e3db63e6b20893e47e02576c0
- https://git.kernel.org/stable/c/d0993fc053f29e15cc7c9fe2029df3882a2ab5ab
- https://git.kernel.org/stable/c/87210054bad82bbae6f483a742dc45722fb47a6b
- https://git.kernel.org/stable/c/d08e8ac13f2e228cc7fc3c70b5ebe71557b624a0
- https://git.kernel.org/stable/c/ec341bb76d77b4c2948764375ee6bfeef4bb41c3
- https://git.kernel.org/stable/c/ff89415d34c3ab9f5312316423122e664ed3524f
- https://git.kernel.org/stable/c/05f2987f73daa05333fd713d05546142f9f7c5f0
- https://git.kernel.org/stable/c/8eca411347e1d38964f9ed2c8d3b6ab0e7e4473d
ADP enrichment
No English description supplied.
No references supplied.