CVE-2024-35890
Assigner: Linux
Published: 2024-05-19T08:34:46.085Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

gro: fix ownership transfer

If packets are GROed with fraglist they might be segmented later on and
continue their journey in the stack. In skb_segment_list those skbs can
be reused as-is. This is an issue as their destructor was removed in
skb_gro_receive_list but not the reference to their socket, and then
they can't be orphaned. Fix this by also removing the reference to the
socket.

For example this could be observed,

  kernel BUG at include/linux/skbuff.h:3131!  (skb_orphan)
  RIP: 0010:ip6_rcv_core+0x11bc/0x19a0
  Call Trace:
   ipv6_list_rcv+0x250/0x3f0
   __netif_receive_skb_list_core+0x49d/0x8f0
   netif_receive_skb_list_internal+0x634/0xd40
   napi_complete_done+0x1d2/0x7d0
   gro_cell_poll+0x118/0x1f0

A similar construction is found in skb_gro_receive, apply the same
change there.
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 5e10da5385d2
lessThan: d225b0ac96dc
status: affected
versionType: git
version: 5e10da5385d2
lessThan: 2eeab8c47c3c
status: affected
versionType: git
version: 5e10da5385d2
lessThan: fc126c1d51e9
status: affected
versionType: git
version: 5e10da5385d2
lessThan: 5b3b67f73129
status: affected
versionType: git
version: 5e10da5385d2
lessThan: ed4cccef64c1
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 5.15
status: affected
version: 0
lessThan: 5.15
status: unaffected
versionType: custom
version: 5.15.154
lessThanOrEqual: 5.15.*
status: unaffected
versionType: custom
version: 6.1.85
lessThanOrEqual: 6.1.*
status: unaffected
versionType: custom
version: 6.6.26
lessThanOrEqual: 6.6.*
status: unaffected
versionType: custom
version: 6.8.5
lessThanOrEqual: 6.8.*
status: unaffected
versionType: custom
version: 6.9
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: gro: fix ownership transfer
x_generator: engine: bippy-d175d3acf727