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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2024-50169

vsock: Update rx_bytes on read_skb()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 634f1a7110b439c65fd8a809171c1d2d28bcea6f to < 66cd51de31c682a311c2fa25c580b7ea45859dd9affected
  • 634f1a7110b439c65fd8a809171c1d2d28bcea6f to < e5ca2b98090b4bb1c393088c724af6c37812a829affected
  • 634f1a7110b439c65fd8a809171c1d2d28bcea6f to < 3543152f2d330141d9394d28855cb90b860091d2affected

Linux Linux

Default version status: affected

  • 6.4affected
  • 0 to < 6.4unaffected
  • 6.6.59 to ≤ 6.6.*unaffected
  • 6.11.6 to ≤ 6.11.*unaffected
  • 6.12 to ≤ *unaffected

References