Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vsock: Update rx_bytes on read_skb() Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after vsock_transport::read_skb(). While here, also inform the peer that we've freed up space and it has more credit. Failing to update rx_bytes after packet is dequeued leads to a warning on SOCK_STREAM recv(): [ 233.396654] rx_queue is empty, but rx_bytes is non-zero [ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 634f1a7110b439c65fd8a809171c1d2d28bcea6f before 66cd51de31c682a311c2fa25c580b7ea45859dd9; affected 634f1a7110b439c65fd8a809171c1d2d28bcea6f before e5ca2b98090b4bb1c393088c724af6c37812a829; affected 634f1a7110b439c65fd8a809171c1d2d28bcea6f before 3543152f2d330141d9394d28855cb90b860091d2 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.6.59 through 6.6.*; unaffected 6.11.6 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9
- https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829
- https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2
ADP enrichment
No English description supplied.
No references supplied.