Skip to content
CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2024-26665

tunnels: fix out of bounds access when building IPv6 PMTU error

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: tunnels: fix out of bounds access when building IPv6 PMTU error If the ICMPv6 error is built from a non-linear skb we get the following splat, BUG: KASAN: slab-out-of-bounds in do_csum+0x220/0x240 Read of size 4 at addr ffff88811d402c80 by task netperf/820 CPU: 0 PID: 820 Comm: netperf Not tainted 6.8.0-rc1+ #543 ... kasan_report+0xd8/0x110 do_csum+0x220/0x240 csum_partial+0xc/0x20 skb_tunnel_check_pmtu+0xeb9/0x3280 vxlan_xmit_one+0x14c2/0x4080 vxlan_xmit+0xf61/0x5c00 dev_hard_start_xmit+0xfb/0x510 __dev_queue_xmit+0x7cd/0x32a0 br_dev_queue_push_xmit+0x39d/0x6a0 Use skb_checksum instead of csum_partial who cannot deal with non-linear SKBs.

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

  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < e77bf828f1ca1c47fcff58bdc26b60a9d3dfbe1daffected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < d964dd1bc1452594b4207d9229c157d9386e5d8aaffected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < e37cde7a5716466ff2a76f7f27f0a29b05b9a732affected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 510c869ffa4068c5f19ff4df51d1e2f3a30aaac1affected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < 7dc9feb8b1705cf00de20563b6bc4831f4c99dabaffected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f to < d75abeec401f8c86b470e7028a13fcdc87e5dd06affected

Linux Linux

Default version status: affected

  • 5.9affected
  • 0 to < 5.9unaffected
  • 5.10.210 to ≤ 5.10.*unaffected
  • 5.15.149 to ≤ 5.15.*unaffected
  • 6.1.78 to ≤ 6.1.*unaffected
  • 6.6.17 to ≤ 6.6.*unaffected
  • 6.7.5 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References