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Description

In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-27 | Updated 2026-05-27 | Assigner Linux

Product status

Default status
unaffected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before 548244c2f542aa0ad49453e9306e715a3877bc44
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before dcf9b3c90e5560339649d088836529883fb509f3
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before 9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before 959ea349c7e2d4edf07b6838ca7e59345fe61a08
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before 50422613185d505201167e8bdd2f2700790d5db6
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before a78d055ba7c31103ad02f8eceb0c452e154d2660
affected

ddb94eafab8b597b05904c8277194ea2d6357fa9 (git) before 008e7a7c293b30bc43e4368dac6ea3808b75a572
affected

Default status
affected

5.13
affected

Any version before 5.13
unaffected

5.15.202 (semver)
unaffected

6.1.165 (semver)
unaffected

6.6.128 (semver)
unaffected

6.12.75 (semver)
unaffected

6.18.14 (semver)
unaffected

6.19.4 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/548244c2f542aa0ad49453e9306e715a3877bc44

git.kernel.org/...c/dcf9b3c90e5560339649d088836529883fb509f3

git.kernel.org/...c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6

git.kernel.org/...c/959ea349c7e2d4edf07b6838ca7e59345fe61a08

git.kernel.org/...c/50422613185d505201167e8bdd2f2700790d5db6

git.kernel.org/...c/a78d055ba7c31103ad02f8eceb0c452e154d2660

git.kernel.org/...c/008e7a7c293b30bc43e4368dac6ea3808b75a572

cve.org (CVE-2026-45847)

nvd.nist.gov (CVE-2026-45847)

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