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CVE-2026-46116

xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

Products / packages Linux · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 10.0 Extended Update Support · 19 more

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 22:20:30 UTC
Linux · CVSS:3.1 · 7.8
Assessment vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
redhat-SADP · CVSS:3.1 · 7
Assessment vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
The headline uses the highest imported catalog score. Assessments can differ by source and CVSS version.

Severity

high7.8

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

In the Linux kernel, the following vulnerability has been resolved:

Source excerpt · Linux

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Linux · Linux

Linux

8 ranges

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affected

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 6b4dc3181b4bfc5f5fc33ab33b1dc6e15759f4b6

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 3943fcad7694a7d0b15aeabe7d3cc2a2eb8e92e8

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 2c617848ae6e4f07a3e397f604208c293bbecacc

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before b4a53add2fa8f1b5aa17d4c5686c320785fab182

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 26edb0a3c99f9d958c212be68b21f1221614dcf0

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 4980162de555cb838f1a189ce7d2cbf5d2e7b050

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before a2e2d08fb070fab4947447171f1c4e3ca5a188e5

git versions

7b4dc3600e4877178ba94c7fbf7e520421378aa6 → before 14acf9652e5690de3c7486c6db5fb8dafd0a32a3

git versions

unaffected

unknown

Other versions: unaffected

Linux · Linux

Linux

10 ranges

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affected

2.6.19

unaffected

0 → before 2.6.19

semver versions

5.10.261 → through 5.10.*

semver versions

5.15.210 → through 5.15.*

semver versions

6.1.176 → through 6.1.*

semver versions

6.6.140 → through 6.6.*

semver versions

6.12.88 → through 6.12.*

semver versions

6.18.30 → through 6.18.*

semver versions

7.0.7 → through 7.0.*

semver versions

7.1 → through *

original_commit_for_fix versions

unknown

Other versions: affected

Red Hat · redhat-SADP

Red Hat Enterprise Linux 10

1 range

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affected

unaffected

0:6.12.0-211.37.1.el10_2 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:10.2

Red Hat · redhat-SADP

Red Hat Enterprise Linux 10

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:10.2

Red Hat · redhat-SADP

Red Hat Enterprise Linux 10.0 Extended Update Support

1 range

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affected

unaffected

0:6.12.0-55.88.1.el10_0 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux_eus:10.0

Red Hat · redhat-SADP

Red Hat Enterprise Linux 7 Extended Lifecycle Support

1 range

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affected

unaffected

0:3.10.0-1160.156.1.rt56.1308.el7 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_extras_rt_els:7

Red Hat · redhat-SADP

Red Hat Enterprise Linux 7 Extended Lifecycle Support

1 range

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affected

unaffected

0:3.10.0-1160.156.1.el7 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_els:7

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8

1 range

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affected

unaffected

0:4.18.0-553.144.1.rt7.485.el8_10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:8::nfv

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8

1 range

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affected

unaffected

0:4.18.0-553.144.1.el8_10 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:8

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:8

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

1 range

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affected

unaffected

0:4.18.0-305.199.1.el8_4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_aus:8.4

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

1 range

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affected

unaffected

0:4.18.0-305.199.1.el8_4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_eus_long_life:8.4

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

1 range

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affected

unaffected

0:4.18.0-372.204.1.el8_6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_aus:8.6

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

1 range

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affected

unaffected

0:4.18.0-372.204.1.el8_6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_eus_long_life:8.6

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.8 Telecommunications Update Service

1 range

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affected

unaffected

0:4.18.0-477.156.1.el8_8 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_tus:8.8

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

1 range

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affected

unaffected

0:4.18.0-477.156.1.el8_8 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:rhel_e4s:8.8

Red Hat · redhat-SADP

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:rhel_e4s:8.8

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9

1 range

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affected

unaffected

0:5.14.0-687.22.1.el9_8 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:enterprise_linux:9cpe:/o:redhat:enterprise_linux:9

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:9

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

1 range

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affected

unaffected

0:5.14.0-284.183.1.el9_2 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:9.2

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

1 range

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affected

unaffected

0:5.14.0-284.183.1.rt14.468.el9_2 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:9.2::nfv

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:rhel_e4s:9.2

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

1 range

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affected

unaffected

0:5.14.0-427.139.1.el9_4 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_e4s:9.4

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:rhel_e4s:9.4

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.6 Extended Update Support

1 range

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affected

unaffected

0:5.14.0-570.129.1.el9_6 → before *

rpm versions

unknown

Other versions: affected

Product identifiers (CPE)cpe:/a:redhat:rhel_eus:9.6

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9.6 Extended Update Support

0 ranges

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affected

unaffected

unknown

Other versions: unaffected

Product identifiers (CPE)cpe:/o:redhat:rhel_eus:9.6

Red Hat · redhat-SADP

Red Hat Enterprise Linux 6

0 ranges

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affected

unaffected

unknown

Other versions: unknown

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:6

Red Hat · redhat-SADP

Red Hat Enterprise Linux 9

0 ranges

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affected

unaffected

unknown

Other versions: affected

Product identifiers (CPE)cpe:/o:redhat:enterprise_linux:9

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)

1 range

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affected

V3.1.6 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)

1 range

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affected

V3.1.7 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.6 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.7 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.6 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.7 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.6 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.7 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.6 → before *

custom versions

unaffected

unknown

Other versions: unknown

Siemens · siemens-SADP

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)

1 range

Compare with this publisher’s ranges. This does not inspect your installation.

affected

V3.1.7 → before *

custom versions

unaffected

unknown

Other versions: unknown

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

RHSA-2026:41235: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)

redhat-SADP guidance ↗

RHSA-2026:41234: Red Hat Enterprise Linux for Real Time (v. 7 ELS)

redhat-SADP guidance ↗

RHSA-2026:39371: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0), Red Hat Enterprise Linux Real Time EUS (v. 10.0), Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)

redhat-SADP guidance ↗

RHSA-2026:42919: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)

redhat-SADP guidance ↗

RHSA-2026:47739: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)

redhat-SADP guidance ↗

RHSA-2026:43231: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4), Red Hat Enterprise Linux Real Time E4S (v.9.4), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)

redhat-SADP guidance ↗

RHSA-2026:44385: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)

redhat-SADP guidance ↗

RHSA-2026:36018: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)

redhat-SADP guidance ↗

RHSA-2026:59143: Red Hat Enterprise Linux BaseOS (v. 10)

redhat-SADP guidance ↗

RHSA-2026:39179: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)

redhat-SADP guidance ↗

RHSA-2026:59146: Red Hat Enterprise Linux BaseOS (v. 8)

redhat-SADP guidance ↗

RHSA-2026:47633: Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)

redhat-SADP guidance ↗

RHSA-2026:49033: Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)

redhat-SADP guidance ↗

RHSA-2026:47869: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)

redhat-SADP guidance ↗

RHSA-2026:59142: Red Hat Enterprise Linux BaseOS E4S (v.8.8)

redhat-SADP guidance ↗

RHSA-2026:59147: Red Hat Enterprise Linux BaseOS E4S (v.9.2)

redhat-SADP guidance ↗

RHSA-2026:59145: Red Hat Enterprise Linux BaseOS E4S (v.9.4)

redhat-SADP guidance ↗

RHSA-2026:59148: Red Hat Enterprise Linux BaseOS EUS (v.9.6)

redhat-SADP guidance ↗

RHSA-2026:59149: Red Hat Enterprise Linux BaseOS (v. 9)

redhat-SADP guidance ↗

RHSA-2026:39180: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)

redhat-SADP guidance ↗

RHSA-2026:47632: Red Hat Enterprise Linux Real Time E4S (v.9.2), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)

redhat-SADP guidance ↗

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

redhat-SADP guidance ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

In the Linux kernel, the following vulnerability has been resolved:

xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls under syzkaller load on linux-6.12.y stable (reproduced on 6.12.47, also reachable via the same code path on torvalds/master and on the ipsec tree). Nine unique signatures cluster in the xfrm_state lifecycle, the load-bearing one being:

BUG: KASAN: slab-use-after-free in __hlist_del include/linux/list.h:990 [inline] BUG: KASAN: slab-use-after-free in hlist_del_rcu include/linux/rculist.h:516 [inline] BUG: KASAN: slab-use-after-free in __xfrm_state_delete net/xfrm/xfrm_state.c Write of size 8 at addr ffff8881198bcb70 by task kworker/u8:9/435

Workqueue: netns cleanup_net Call Trace: __hlist_del / hlist_del_rcu __xfrm_state_delete xfrm_state_delete xfrm_state_flush xfrm_state_fini ops_exit_list cleanup_net

The other observed signatures hit the same slab object from __xfrm_state_lookup, xfrm_alloc_spi, __xfrm_state_insert and an OOB write variant of __xfrm_state_delete, all on the byseq/byspi hash chains.

__xfrm_state_delete() guards its byseq and byspi unhashes with value-based predicates:

if (x->km.seq)
	hlist_del_rcu(&x->byseq);
if (x->id.spi)
	hlist_del_rcu(&x->byspi);

while everywhere else in the file (e.g. state_cache, state_cache_input) the safer hlist_unhashed() check is used. xfrm_alloc_spi() sets x->id.spi = newspi inside xfrm_state_lock and then immediately inserts into byspi, but a path that observes x->id.spi != 0 outside of xfrm_state_lock can still skip-or-hit the byspi unhash inconsistently with whether x is actually on the list. The same holds for x->km.seq versus byseq, and the bydst/bysrc unhashes have no predicate at all, so a second __xfrm_state_delete() on the same object writes through LIST_POISON pprev.

The defensive change here:

  • Use hlist_del_init_rcu() instead of hlist_del_rcu() on bydst, bysrc, byseq and byspi so a second deletion is a no-op rather than a write through LIST_POISON pprev. The byseq/byspi nodes are already initialised in xfrm_state_alloc().
  • Test hlist_unhashed() rather than the value predicate for byseq/byspi, so the unhash decision tracks list state rather than mutable scalar fields.

Empirical verification: applied this patch on top of v6.12.47, rebuilt, and re-ran the same syzkaller harness for 1h16m on a previously-crashy configuration that produced ~100 hits each of slab-use-after-free Read in xfrm_alloc_spi / Read in __xfrm_state_lookup / Write in __xfrm_state_delete. After the patch, 7.1M execs across 32 VMs at ~1550 exec/sec produced zero xfrm_state UAF/OOB hits. /proc/slabinfo confirms the xfrm_state slab is actively allocated and freed during the run (~143 KiB resident), so the fuzzer is still exercising those code paths -- they just no longer crash.

Reproduction:

  • Linux 6.12.47 x86_64 + KASAN_GENERIC + KASAN_INLINE + KCOV
  • syzkaller @ 746545b8b1e4c3a128db8652b340d3df90ce61db
  • 32 QEMU/KVM VMs x 2 vCPU on AWS c5.metal bare metal
  • 9 unique signatures collected in ~9h, all within xfrm_state lifecycle

References

35 sources
View 29 more references
access.redhat.com/errata/RHSA-2026:44385
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:36018
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59143
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:39179
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59146
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:47633
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:49033
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:47869
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59142
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59147
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59145
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59148
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:59149
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:39180
Vendor advisoryredhat-SADP
access.redhat.com/errata/RHSA-2026:47632
Vendor advisoryredhat-SADP
git.kernel.org/stable/c/6b4dc3181b4bfc5f5fc33ab33b1dc6e15759f4b6
Source referenceLinux
git.kernel.org/stable/c/3943fcad7694a7d0b15aeabe7d3cc2a2eb8e92e8
Source referenceLinux
git.kernel.org/stable/c/2c617848ae6e4f07a3e397f604208c293bbecacc
Source referenceLinux
git.kernel.org/stable/c/b4a53add2fa8f1b5aa17d4c5686c320785fab182
Source referenceLinux
git.kernel.org/stable/c/26edb0a3c99f9d958c212be68b21f1221614dcf0
Source referenceLinux
git.kernel.org/stable/c/4980162de555cb838f1a189ce7d2cbf5d2e7b050
Source referenceLinux
git.kernel.org/stable/c/a2e2d08fb070fab4947447171f1c4e3ca5a188e5
Source referenceLinux
git.kernel.org/stable/c/14acf9652e5690de3c7486c6db5fb8dafd0a32a3
Source referenceLinux
access.redhat.com/security/cve/CVE-2026-46116
Security advisoryredhat-SADP
bugzilla.redhat.com/show_bug.cgi
Source referenceredhat-SADP
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46116.json
Security advisoryredhat-SADP
cert-portal.siemens.com/productcert/html/ssa-019113.html
Source referencesiemens-SADP
cert-portal.siemens.com/productcert/html/ssa-457936.html
Source referencesiemens-SADP
cert-portal.siemens.com/productcert/html/ssa-784472.html
Source referencesiemens-SADP

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-46116

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-763 ↗

Release of Invalid Pointer or Reference

redhat-SADP

Related →
CWE-416 ↗

CWE-416 Use After Free

CISA-ADP

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

Linux · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 5.10.261

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 5.15.210

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 6.1.176

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 6.6.140

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 6.12.88

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 6.18.30

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 7.0.7

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 2.6.19

Before: 7.1

Applicability preview
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "5.10.261"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "5.15.210"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "6.1.176"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "6.6.140"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "6.12.88"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "6.18.30"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "7.0.7"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "2.6.19",
            "versionEndExcluding": "7.1"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 4
Linux

Assigning organization

2026-08-05
redhat-SADP

Additional data publisher

2026-09-15
siemens-SADP

Additional data publisher

2026-11-10
CISA-ADP

Additional data publisher

2026-10-19

Timeline

All times UTC
  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.