CVE-2026-68420

CVE-2026-68420 · xfrm: reject optional IPTFS templates in outbound policies

CVSS 7.1 · High · EPSS 0.1% · Fix available

Are you affected?

linuxNo fix published
linux Debian 14Update to 7.1.6-1
linux-hwe-edge Ubuntu 16.04 LTSNo fix published
linux-aws-5.0 Ubuntu 18.04 LTSNo fix published
and 19 more

Check the installed version:

dpkg-query -W -f='${source:Package} ${binary:Package} ${Version}\n' | awk '$1=="linux"'

dpkg-query -W -f='${source:Package} ${binary:Package} ${Version}\n' | awk '$1=="linux-hwe-edge"'

dpkg-query -W -f='${source:Package} ${binary:Package} ${Version}\n' | awk '$1=="linux-aws-5.0"'

The free check shows your server's rating and highlights whether linux and the rest of its software need attention. No sign-up; server names and IP addresses are never sent. CVE IDs, fixed versions and recommendations come with paid monitoring.

curl -fsSL https://patchfirst.dev/check.sh | sh

Check your server for free →

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

In the Linux kernel, the following vulnerability has been resolved: xfrm: reject optional IPTFS templates in outbound policies syzbot reported a stack-out-of-bounds read in xfrm_state_find() which flows from xfrm_tmpl_resolve_one(). Commit 3d776e31c841 ("xfrm: Reject optional tunnel/BEET mode templates in outbound policies") disallowed optional tunnel and BEET in outbound policies to prevent this. Later when IPTFS added, it was not covered by that fix and can still trigger the out-of-bounds read; Extend the check to disallow optional IPTFS in outbound policies as well. IPTFS should be identical to tunnel mode. IN and FWD policies are not affected: xfrm_tmpl_resolve_one() is only reachable via the outbound path. Reproducer, before: ip link add dummy0 type dummy ip link set dummy0 up ip addr add 10.1.1.1/24 dev dummy0 ip xfrm policy add src 10.1.1.1/32 dst 10.1.1.2/32 dir out tmpl src fc00::dead:1 dst fc00::dead:2 proto esp reqid 1 mode iptfs level use tmpl src fc00::dead:1 dst fc00::dead:2 proto esp reqid 2 mode transport ping -W 1 -c 1 10.1.1.2 PING 10.1.1.2 (10.1.1.2) 56(84) bytes of data. [ 64.168420] ================================================================== [ 64.169977] BUG: KASAN: stack-out-of-bounds in __xfrm6_addr_hash+0x11e/0x170 [ 64.169977] Read of size 4 at addr ffff88800e1ffd20 by task ping/2844 [ 64.169977] CPU: 2 UID: 0 PID: 2844 Comm: ping Not tainted 7.1.0-rc7-00180-geb23b588430a #98 PREEMPT(full) [ 64.169977] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 64.169977] Call Trace: [ 64.169977] <TASK> [ 64.169977] dump_stack_lvl+0x47/0x70 [ 64.169977] ? __xfrm6_addr_hash+0x11e/0x170 [ 64.169977] print_report+0x152/0x4b0 [ 64.169977] ? ksys_mmap_pgoff+0x6d/0xa0 [ 64.169977] ? entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 64.169977] ? rcu_read_unlock_sched+0xa/0x20 [ 64.169977] ? __virt_addr_valid+0x21b/0x230 [ 64.169977] ? __xfrm6_addr_hash+0x11e/0x170 [ 64.169977] kasan_report+0xa8/0xd0 [ 64.169977] ? __xfrm6_addr_hash+0x11e/0x170 [ 64.169977] __xfrm6_addr_hash+0x11e/0x170 [ 64.169977] __xfrm_dst_hash+0x24/0xc0 [ 64.169977] xfrm_state_find+0xa2d/0x2f90 [ 64.169977] ? __pfx_xfrm_state_find+0x10/0x10 [ 64.169977] ? __pfx_ftrace_graph_ret_addr+0x10/0x10 [ 64.169977] ? __pfx_ftrace_graph_ret_addr+0x10/0x10 [ 64.169977] xfrm_tmpl_resolve_one+0x210/0x570 [ 64.169977] ? __pfx_xfrm_tmpl_resolve_one+0x10/0x10 [ 64.169977] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 64.169977] ? kernel_text_address+0x5b/0x80 [ 64.169977] ? __kernel_text_address+0xe/0x30 [ 64.169977] ? unwind_get_return_address+0x5e/0x90 [ 64.169977] ? arch_stack_walk+0x8c/0xe0 [ 64.169977] xfrm_tmpl_resolve+0x130/0x200 [ 64.169977] ? __pfx_xfrm_tmpl_resolve+0x10/0x10 [ 64.169977] ? __pfx_xfrm_policy_inexact_lookup_rcu+0x10/0x10 [ 64.169977] ? __refcount_add_not_zero.constprop.0+0xb2/0x110 [ 64.169977] ? __pfx___refcount_add_not_zero.constprop.0+0x10/0x10 [ 64.169977] xfrm_resolve_and_create_bundle+0xd5/0x310 [ 64.169977] ? __pfx_xfrm_resolve_and_create_bundle+0x10/0x10 [ 64.169977] ? __pfx_xfrm_policy_lookup_bytype+0x10/0x10 [ 64.169977] ? __pfx_xfrm_policy_lookup_bytype+0x10/0x10 [ 64.169977] xfrm_lookup_with_ifid+0x3d8/0xb80 [ 64.169977] ? __pfx_xfrm_lookup_with_ifid+0x10/0x10 [ 64.169977] ? ip_route_output_key_hash+0xc6/0x110 [ 64.169977] ? kasan_save_track+0x10/0x30 [ 64.169977] xfrm_lookup_route+0x18/0xe0 [ 64.169977] ip4_datagram_release_cb+0x4c9/0x530 [ 64.169977] ? __pfx_ip4_datagram_release_cb+0x10/0x10 [ 64.169977] ? do_raw_spin_lock+0x71/0xc0 [ 64.169977] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 64.169977] release_sock+0xb0/0x170 [ 64.169977] udp_connect+0x43/0x50 [ 64.169977] __sys_connect+0xa6/0x100 [ 64.169977] ? alloc_fd+0x2e9/0x300 [ 64.169977] ? __pfx___sys_connect+0x10/0x10 [ 64.169977] ? preempt_latency ---truncated---

Published: 2026-08-10T12:04:40.933Z
Updated: 2026-08-17T05:05:15.432Z

Stack: system

Affected products and versions

linux
Versions
- ≥ d1716d5a44c37e5743bf6ea4e5cdbdab37727f27, < d7fc6f351c478586980a521d63b0214d9c055e78: Affected (git)
- ≥ d1716d5a44c37e5743bf6ea4e5cdbdab37727f27, < 9333f4b6f44858fc98eb12bf26b8d2959eb975d5: Affected (git)
- ≥ d1716d5a44c37e5743bf6ea4e5cdbdab37727f27, < ea528f18231ec0f33317be57f8866913b19aba6e: Affected (git)
No fix published
linux
Versions
- 6.14: Affected
- ≥ 0, < 6.14: Not affected (semver)
- ≥ 6.18.42, ≤ 6.18.*: Not affected (semver)
- ≥ 7.1.6, ≤ 7.1.*: Not affected (semver)
- ≥ 7.2: Not affected (original_commit_for_fix)
No fix published
linux Debian 14
Versions
- 6.12.100-1
- 6.12.101-1
- 6.12.105-1
- 6.12.107-1
- 6.12.111-1
- 6.12.38-1
All versions (161)
6.12.41-1
6.12.43-1
6.12.43-1~bpo12+1
6.12.48-1
6.12.57-1
6.12.57-1~bpo12+1
6.12.63-1
6.12.63-1~bpo12+1
6.12.69-1
6.12.69-1~bpo12+1
6.12.73-1
6.12.73-1~bpo12+1
6.12.74-1
6.12.74-2
6.12.74-2~bpo12+1
6.12.85-1
6.12.85-1~bpo12+1
6.12.86-1
6.12.86-1~bpo12+1
6.12.88-1
6.12.88-1~bpo12+1
6.12.90-1
6.12.90-1~bpo12+1
6.12.90-2
6.12.90-2~bpo12+1
6.12.94-1
6.12.94-1~bpo12+1
6.12.95-1
6.12.95-1~bpo12+1
6.12.96-1
6.13.10-1~exp1
6.13.11-1~exp1
6.13.2-1~exp1
6.13.3-1~exp1
6.13.4-1~exp1
6.13.5-1~exp1
6.13.6-1~exp1
6.13.7-1~exp1
6.13.8-1~exp1
6.13.9-1~exp1
6.13~rc6-1~exp1
6.13~rc7-1~exp1
6.14.3-1~exp1
6.14.5-1~exp1
6.14.6-1~exp1
6.15-1~exp1
6.15.1-1~exp1
6.15.2-1~exp1
6.15.3-1~exp1
6.15.4-1~exp1
6.15.5-1~exp1
6.15.6-1~exp1
6.15~rc7-1~exp1
6.16-1~exp1
6.16.1-1~exp1
6.16.10-1
6.16.11-1
6.16.12-1
6.16.12-1~bpo13+1
6.16.12-2
6.16.3-1
6.16.3-1~bpo13+1
6.16.5-1
6.16.6-1
6.16.7-1
6.16.8-1
6.16.9-1
6.16~rc7-1~exp1
6.17.10-1
6.17.11-1
6.17.12-1
6.17.13-1
6.17.13-1~bpo13+1
6.17.2-1~exp1
6.17.5-1~exp1
6.17.6-1
6.17.7-1
6.17.7-2
6.17.8-1
6.17.8-1~bpo13+1
6.17.9-1
6.18.1-1~exp1
6.18.10-1
6.18.12-1
6.18.12-1~bpo13+1
6.18.13-1
6.18.14-1
6.18.15-1
6.18.15-1~bpo13+1
6.18.2-1~exp1
6.18.3-1
6.18.5-1
6.18.5-1~bpo13+1
6.18.8-1
6.18.9-1
6.18.9-1~bpo13+1
6.18~rc4-1~exp1
6.18~rc4-1~exp2
6.18~rc5-1~exp1
6.18~rc6-1~exp1
6.18~rc7-1~exp1
6.19-1~exp1
6.19.10-1
6.19.10-1~bpo13+1
6.19.11-1
6.19.11-1~bpo13+1
6.19.12-1
6.19.13-1
6.19.13-1~bpo13+1
6.19.14-1
6.19.14-1~bpo13+1
6.19.2-1~exp1
6.19.3-1~exp1
6.19.4-1~exp1
6.19.5-1~exp1
6.19.6-1
6.19.6-2
6.19.6-2~bpo13+1
6.19.8-1
6.19.8-1~bpo13+1
6.19~rc4-1~exp1
6.19~rc5-1~exp1
6.19~rc6-1~exp1
6.19~rc7-1~exp1
6.19~rc8-1~exp1
7.0-1~exp1
7.0.1-1~exp1
7.0.10-1
7.0.10-1~bpo13+1
7.0.12-1
7.0.12-2
7.0.12-2~bpo13+1
7.0.13-1
7.0.13-1~bpo13+1
7.0.14-1
7.0.3-1
7.0.4-1
7.0.4-1~bpo13+1
7.0.7-1
7.0.7-1~bpo13+1
7.0.9-1
7.0.9-1~bpo13+1
7.1.1-1~exp1
7.1.2-1~exp1
7.1.3-1
7.1.3-1+sunvdc
7.1.3-1~bpo13+1
7.1.4-1
7.1.5-1
7.1~rc2-1~exp1
7.1~rc3-1~exp1
7.1~rc4-1~exp1
7.1~rc4-1~exp2
7.1~rc5-1~exp1
7.1~rc7-1~exp1
Affected ranges
- ECOSYSTEM: < 7.1.6-1
Update to 7.1.6-1
linux-hwe-edge Ubuntu 16.04 LTS
Versions
- 4.8.0-28.30~16.04.1
- 4.8.0-30.32~16.04.1
- 4.8.0-32.34~16.04.1
- 4.8.0-34.36~16.04.1
- 4.10.0-14.16~16.04.1
- 4.10.0-19.21~16.04.1
All versions (23)
4.10.0-20.22~16.04.1
4.10.0-21.23~16.04.1
4.10.0-22.24~16.04.1
4.10.0-24.28~16.04.1
4.10.0-26.30~16.04.1
4.11.0-13.19~16.04.1
4.11.0-14.20~16.04.1
4.13.0-16.19~16.04.3
4.13.0-17.20~16.04.1
4.13.0-19.22~16.04.1
4.13.0-21.24~16.04.1
4.13.0-25.29~16.04.2
4.15.0-13.14~16.04.1
4.15.0-15.16~16.04.1
4.15.0-20.21~16.04.1
4.15.0-22.24~16.04.1
4.15.0-23.25~16.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.0 Ubuntu 18.04 LTS
Versions
- 5.0.0-1021.24~18.04.1
- 5.0.0-1022.25~18.04.1
- 5.0.0-1023.26~18.04.1
- 5.0.0-1024.27~18.04.1
- 5.0.0-1025.28
- 5.0.0-1027.30
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1016.17~18.04.1
- 5.3.0-1017.18~18.04.1
- 5.3.0-1019.21~18.04.1
- 5.3.0-1023.25~18.04.1
- 5.3.0-1028.30~18.04.1
- 5.3.0-1030.32~18.04.1
All versions (10)
5.3.0-1032.34~18.04.2
5.3.0-1033.35
5.3.0-1034.36
5.3.0-1035.37
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure Ubuntu 18.04 LTS
Versions
- 4.15.0-1002.2
- 4.15.0-1003.3
- 4.15.0-1004.4
- 4.15.0-1008.8
- 4.15.0-1009.9
- 4.15.0-1012.12
All versions (44)
4.15.0-1013.13
4.15.0-1014.14
4.15.0-1018.18
4.15.0-1019.19
4.15.0-1021.21
4.15.0-1022.23
4.15.0-1023.24
4.15.0-1025.26
4.15.0-1028.29
4.15.0-1030.31
4.15.0-1031.32
4.15.0-1032.33
4.15.0-1035.36
4.15.0-1036.38
4.15.0-1037.39
4.18.0-1011.11~18.04.1
4.18.0-1013.13~18.04.1
4.18.0-1014.14~18.04.1
4.18.0-1018.18~18.04.1
4.18.0-1019.19~18.04.1
4.18.0-1020.20~18.04.1
4.18.0-1023.24~18.04.1
4.18.0-1024.25~18.04.1
4.18.0-1025.27~18.04.1
5.0.0-1014.14~18.04.1
5.0.0-1016.17~18.04.1
5.0.0-1018.19~18.04.1
5.0.0-1020.21~18.04.1
5.0.0-1022.23~18.04.1
5.0.0-1023.24~18.04.1
5.0.0-1025.27~18.04.1
5.0.0-1027.29~18.04.1
5.0.0-1028.30~18.04.1
5.0.0-1029.31~18.04.1
5.0.0-1031.33
5.0.0-1032.34
5.0.0-1035.37
5.0.0-1036.38
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1007.8~18.04.1
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1013.14~18.04.1
All versions (16)
5.3.0-1016.17~18.04.1
5.3.0-1018.19~18.04.1
5.3.0-1019.20~18.04.1
5.3.0-1020.21~18.04.1
5.3.0-1022.23~18.04.1
5.3.0-1028.29~18.04.1
5.3.0-1031.32~18.04.1
5.3.0-1032.33~18.04.1
5.3.0-1034.35~18.04.1
5.3.0-1035.36
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-edge Ubuntu 18.04 LTS
Versions
- 4.18.0-1006.6~18.04.1
- 4.18.0-1007.7~18.04.1
- 4.18.0-1008.8~18.04.1
- 5.0.0-1012.12~18.04.2
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp Ubuntu 18.04 LTS
Versions
- 4.15.0-1001.1
- 4.15.0-1003.3
- 4.15.0-1005.5
- 4.15.0-1006.6
- 4.15.0-1008.8
- 4.15.0-1009.9
All versions (38)
4.15.0-1010.10
4.15.0-1014.14
4.15.0-1015.15
4.15.0-1017.18
4.15.0-1018.19
4.15.0-1019.20
4.15.0-1021.22
4.15.0-1023.24
4.15.0-1024.25
4.15.0-1025.26
4.15.0-1026.27
4.15.0-1027.28
4.15.0-1028.29
4.15.0-1029.31
4.15.0-1030.32
4.15.0-1032.34
4.15.0-1033.35
4.15.0-1034.36
4.15.0-1036.38
4.15.0-1037.39
4.15.0-1040.42
4.15.0-1042.45
4.15.0-1044.70
5.0.0-1020.20~18.04.1
5.0.0-1021.21~18.04.1
5.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.1
5.0.0-1028.29~18.04.1
5.0.0-1029.30~18.04.1
5.0.0-1031.32
5.0.0-1033.34
5.0.0-1034.35
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1014.15~18.04.1
- 5.3.0-1016.17~18.04.1
All versions (13)
5.3.0-1017.18~18.04.1
5.3.0-1018.19~18.04.1
5.3.0-1020.22~18.04.1
5.3.0-1026.28~18.04.1
5.3.0-1029.31~18.04.1
5.3.0-1030.32~18.04.1
5.3.0-1032.34~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gke-4.15 Ubuntu 18.04 LTS
Versions
- 4.15.0-1030.32
- 4.15.0-1032.34
- 4.15.0-1033.35
- 4.15.0-1034.36
- 4.15.0-1036.38
- 4.15.0-1037.39
All versions (33)
4.15.0-1040.42
4.15.0-1041.43
4.15.0-1042.44
4.15.0-1044.46
4.15.0-1045.48
4.15.0-1046.49
4.15.0-1048.51
4.15.0-1049.52
4.15.0-1050.53
4.15.0-1052.55
4.15.0-1055.58
4.15.0-1057.60
4.15.0-1058.61
4.15.0-1059.62
4.15.0-1063.66
4.15.0-1064.67
4.15.0-1066.69
4.15.0-1067.70
4.15.0-1069.72
4.15.0-1070.73
4.15.0-1072.76
4.15.0-1073.78
4.15.0-1074.79
4.15.0-1076.81
4.15.0-1077.82
4.15.0-1078.83
4.15.0-1079.84
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gke-5.4 Ubuntu 18.04 LTS
Versions
- 5.4.0-1025.25~18.04.1
- 5.4.0-1027.28~18.04.1
- 5.4.0-1029.31~18.04.1
- 5.4.0-1030.32~18.04.1
- 5.4.0-1032.34~18.04.1
- 5.4.0-1033.35~18.04.1
All versions (37)
5.4.0-1035.37~18.04.1
5.4.0-1036.38~18.04.1
5.4.0-1037.39~18.04.1
5.4.0-1039.41~18.04.1
5.4.0-1040.42~18.04.1
5.4.0-1042.44~18.04.1
5.4.0-1043.45~18.04.1
5.4.0-1044.46~18.04.1
5.4.0-1046.48~18.04.1
5.4.0-1049.52~18.04.1
5.4.0-1051.54~18.04.1
5.4.0-1052.55~18.04.1
5.4.0-1053.56~18.04.1
5.4.0-1054.57~18.04.1
5.4.0-1055.58~18.04.1
5.4.0-1056.59~18.04.1
5.4.0-1057.60~18.04.1
5.4.0-1059.62~18.04.1
5.4.0-1061.64~18.04.1
5.4.0-1062.65~18.04.1
5.4.0-1063.66~18.04.1
5.4.0-1065.68~18.04.1
5.4.0-1066.69~18.04.1
5.4.0-1067.70~18.04.1
5.4.0-1068.71~18.04.1
5.4.0-1071.76~18.04.3
5.4.0-1072.77~18.04.1
5.4.0-1074.79~18.04.1
5.4.0-1076.82~18.04.1
5.4.0-1078.84~18.04.1
5.4.0-1080.86~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gkeop-5.4 Ubuntu 18.04 LTS
Versions
- 5.4.0-1001.1
- 5.4.0-1003.3
- 5.4.0-1004.5
- 5.4.0-1005.6
- 5.4.0-1007.8~18.04.1
- 5.4.0-1008.9~18.04.1
All versions (37)
5.4.0-1009.10~18.04.1
5.4.0-1010.11~18.04.1
5.4.0-1011.12~18.04.2
5.4.0-1012.13~18.04.1
5.4.0-1013.14~18.04.1
5.4.0-1014.15~18.04.1
5.4.0-1015.16~18.04.1
5.4.0-1016.17~18.04.1
5.4.0-1018.19~18.04.1
5.4.0-1021.22~18.04.1
5.4.0-1022.23~18.04.1
5.4.0-1023.24~18.04.1
5.4.0-1024.25~18.04.1
5.4.0-1025.26~18.04.1
5.4.0-1026.27~18.04.1
5.4.0-1027.28~18.04.1
5.4.0-1029.30~18.04.2
5.4.0-1031.32~18.04.1
5.4.0-1032.33~18.04.1
5.4.0-1033.34~18.04.1
5.4.0-1034.35~18.04.1
5.4.0-1036.37~18.04.1
5.4.0-1037.38~18.04.1
5.4.0-1038.39~18.04.1
5.4.0-1039.40~18.04.1
5.4.0-1040.41~18.04.1
5.4.0-1043.44~18.04.1
5.4.0-1046.48~18.04.1
5.4.0-1048.51~18.04.1
5.4.0-1049.52~18.04.1
5.4.0-1051.54~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe Ubuntu 18.04 LTS
Versions
- 4.18.0-13.14~18.04.1
- 4.18.0-14.15~18.04.1
- 4.18.0-15.16~18.04.1
- 4.18.0-16.17~18.04.1
- 4.18.0-17.18~18.04.1
- 4.18.0-18.19~18.04.1
All versions (43)
4.18.0-20.21~18.04.1
4.18.0-21.22~18.04.1
4.18.0-22.23~18.04.1
4.18.0-24.25~18.04.1
4.18.0-25.26~18.04.1
5.0.0-23.24~18.04.1
5.0.0-25.26~18.04.1
5.0.0-27.28~18.04.1
5.0.0-29.31~18.04.1
5.0.0-31.33~18.04.1
5.0.0-32.34~18.04.2
5.0.0-35.38~18.04.1
5.0.0-36.39~18.04.1
5.0.0-37.40~18.04.1
5.3.0-26.28~18.04.1
5.3.0-28.30~18.04.1
5.3.0-40.32~18.04.1
5.3.0-42.34~18.04.1
5.3.0-45.37~18.04.1
5.3.0-46.38~18.04.1
5.3.0-51.44~18.04.2
5.3.0-53.47~18.04.1
5.3.0-59.53~18.04.1
5.3.0-61.55~18.04.1
5.3.0-62.56~18.04.1
5.3.0-64.58~18.04.1
5.3.0-65.59
5.3.0-66.60
5.3.0-67.61
5.3.0-68.63
5.3.0-69.65
5.3.0-70.66
5.3.0-72.68
5.3.0-73.69
5.3.0-74.70
5.3.0-75.71
5.3.0-76.72
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe-edge Ubuntu 18.04 LTS
Versions
- 5.0.0-15.16~18.04.1
- 5.0.0-16.17~18.04.1
- 5.0.0-17.18~18.04.1
- 5.0.0-19.20~18.04.1
- 5.0.0-20.21~18.04.1
- 5.3.0-19.20~18.04.2
All versions (10)
5.3.0-22.24~18.04.1
5.3.0-23.25~18.04.1
5.3.0-23.25~18.04.2
5.3.0-24.26~18.04.2
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oem Ubuntu 18.04 LTS
Versions
- 4.15.0-1002.3
- 4.15.0-1004.5
- 4.15.0-1006.9
- 4.15.0-1008.11
- 4.15.0-1009.12
- 4.15.0-1012.15
All versions (50)
4.15.0-1013.16
4.15.0-1015.18
4.15.0-1017.20
4.15.0-1018.21
4.15.0-1021.24
4.15.0-1024.29
4.15.0-1026.31
4.15.0-1028.33
4.15.0-1030.35
4.15.0-1033.38
4.15.0-1034.39
4.15.0-1035.40
4.15.0-1036.41
4.15.0-1038.43
4.15.0-1039.44
4.15.0-1043.48
4.15.0-1045.50
4.15.0-1050.57
4.15.0-1056.65
4.15.0-1057.66
4.15.0-1059.68
4.15.0-1063.72
4.15.0-1064.73
4.15.0-1065.75
4.15.0-1066.76
4.15.0-1067.77
4.15.0-1069.79
4.15.0-1073.83
4.15.0-1076.86
4.15.0-1079.89
4.15.0-1080.90
4.15.0-1081.91
4.15.0-1087.97
4.15.0-1090.100
4.15.0-1091.101
4.15.0-1093.103
4.15.0-1094.104
4.15.0-1096.106
4.15.0-1097.107
4.15.0-1099.109
4.15.0-1100.110
4.15.0-1101.112
4.15.0-1102.113
4.15.0-1103.114
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oracle-5.0 Ubuntu 18.04 LTS
Versions
- 5.0.0-1007.12~18.04.1
- 5.0.0-1008.13~18.04.1
- 5.0.0-1009.14~18.04.1
- 5.0.0-1010.15~18.04.1
- 5.0.0-1011.16
- 5.0.0-1013.18
All versions (7)
5.0.0-1014.19
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oracle-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1011.12~18.04.1
- 5.3.0-1013.14~18.04.1
- 5.3.0-1014.15~18.04.1
- 5.3.0-1016.18~18.04.1
- 5.3.0-1018.20~18.04.1
- 5.3.0-1024.26~18.04.1
All versions (9)
5.3.0-1027.29~18.04.1
5.3.0-1028.30~18.04.1
5.3.0-1030.32~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.11 Ubuntu 20.04 LTS
Versions
- 5.11.0-1009.9~20.04.2
- 5.11.0-1014.15~20.04.1
- 5.11.0-1016.17~20.04.1
- 5.11.0-1017.18~20.04.1
- 5.11.0-1019.20~20.04.1
- 5.11.0-1020.21~20.04.2
All versions (12)
5.11.0-1021.22~20.04.2
5.11.0-1022.23~20.04.1
5.11.0-1023.24~20.04.1
5.11.0-1025.27~20.04.1
5.11.0-1027.30~20.04.1
5.11.0-1028.31~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.13 Ubuntu 20.04 LTS
Versions
- 5.13.0-1008.9~20.04.2
- 5.13.0-1011.12~20.04.1
- 5.13.0-1012.13~20.04.1
- 5.13.0-1014.15~20.04.1
- 5.13.0-1017.19~20.04.1
- 5.13.0-1019.21~20.04.1
All versions (13)
5.13.0-1021.23~20.04.2
5.13.0-1022.24~20.04.1
5.13.0-1023.25~20.04.1
5.13.0-1025.27~20.04.1
5.13.0-1028.31~20.04.1
5.13.0-1029.32~20.04.1
5.13.0-1031.35~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.8 Ubuntu 20.04 LTS
Versions
- 5.8.0-1035.37~20.04.1
- 5.8.0-1038.40~20.04.1
- 5.8.0-1041.43~20.04.1
- 5.8.0-1042.44~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-5.11 Ubuntu 20.04 LTS
Versions
- 5.11.0-1007.7~20.04.2
- 5.11.0-1012.13~20.04.1
- 5.11.0-1013.14~20.04.1
- 5.11.0-1015.16~20.04.1
- 5.11.0-1017.18~20.04.1
- 5.11.0-1019.20~20.04.1
All versions (13)
5.11.0-1020.21~20.04.1
5.11.0-1021.22~20.04.1
5.11.0-1022.23~20.04.1
5.11.0-1023.24~20.04.1
5.11.0-1025.27~20.04.1
5.11.0-1027.30~20.04.1
5.11.0-1028.31~20.04.2
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-5.13 Ubuntu 20.04 LTS
Versions
- 5.13.0-1009.10~20.04.2
- 5.13.0-1012.14~20.04.1
- 5.13.0-1013.15~20.04.1
- 5.13.0-1014.16~20.04.1
- 5.13.0-1017.19~20.04.1
- 5.13.0-1021.24~20.04.1
All versions (12)
5.13.0-1022.26~20.04.1
5.13.0-1023.27~20.04.1
5.13.0-1025.29~20.04.1
5.13.0-1028.33~20.04.1
5.13.0-1029.34~20.04.1
5.13.0-1031.37~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published

Original sources

Check your server →

CVE-2026-68420 · xfrm: reject optional IPTFS templates in outbound policies

Are you affected?

Affected products and versions

linux

linux

linux Debian 14

linux-hwe-edge Ubuntu 16.04 LTS

linux-aws-5.0 Ubuntu 18.04 LTS

linux-aws-5.3 Ubuntu 18.04 LTS

linux-azure Ubuntu 18.04 LTS

linux-azure-5.3 Ubuntu 18.04 LTS

linux-azure-edge Ubuntu 18.04 LTS

linux-gcp Ubuntu 18.04 LTS

linux-gcp-5.3 Ubuntu 18.04 LTS

linux-gke-4.15 Ubuntu 18.04 LTS

linux-gke-5.4 Ubuntu 18.04 LTS

linux-gkeop-5.4 Ubuntu 18.04 LTS

linux-hwe Ubuntu 18.04 LTS

linux-hwe-edge Ubuntu 18.04 LTS

linux-oem Ubuntu 18.04 LTS

linux-oracle-5.0 Ubuntu 18.04 LTS

linux-oracle-5.3 Ubuntu 18.04 LTS

linux-aws-5.11 Ubuntu 20.04 LTS

linux-aws-5.13 Ubuntu 20.04 LTS

linux-aws-5.8 Ubuntu 20.04 LTS

linux-azure-5.11 Ubuntu 20.04 LTS

linux-azure-5.13 Ubuntu 20.04 LTS

Original sources