UBUNTU-CVE-2026-23060
In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_authenc_esn_decrypt() can advance past the end of the destination scatterlist and trigger a NULL pointer dereference in scatterwalk_map_and_copy(), leading to a kernel panic (DoS). Add a minimum AAD length check to fail fast on invalid inputs.
02 / AFFECTED SOFTWARE
Affected packages
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91 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_authenc_esn_decrypt() can advance past the end of the destination scatterlist and trigger a NULL pointer dereference in scatterwalk_map_and_copy(), leading to a kernel panic (DoS). Add a minimum AAD length check to fail fast on invalid inputs.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/2397e9264676be7794f8f7f1e9763d90bd3c7335
- https://git.kernel.org/stable/c/161bdc90fce25bd9890adc67fa1c8563a7acbf40
- https://git.kernel.org/stable/c/2397e9264676be7794f8f7f1e9763d90bd3c7335
- https://git.kernel.org/stable/c/9532ff0d0e90ff78a214299f594ab9bac81defe4
- https://git.kernel.org/stable/c/b0a9609283a5c852addb513dafa655c61eebc1ef
- https://ubuntu.com/security/CVE-2026-23060
- https://ubuntu.com/security/notices/USN-8143-1
- https://ubuntu.com/security/notices/USN-8143-2
- https://ubuntu.com/security/notices/USN-8145-1
- https://ubuntu.com/security/notices/USN-8145-2
- https://ubuntu.com/security/notices/USN-8145-3
- https://ubuntu.com/security/notices/USN-8145-4
- https://ubuntu.com/security/notices/USN-8145-5
- https://ubuntu.com/security/notices/USN-8148-1
- https://ubuntu.com/security/notices/USN-8148-2
- https://ubuntu.com/security/notices/USN-8148-3
- https://ubuntu.com/security/notices/USN-8148-4
- https://ubuntu.com/security/notices/USN-8148-5
- https://ubuntu.com/security/notices/USN-8148-6
- https://ubuntu.com/security/notices/USN-8148-7
- https://ubuntu.com/security/notices/USN-8149-1
- https://ubuntu.com/security/notices/USN-8149-2
- https://ubuntu.com/security/notices/USN-8149-3
- https://ubuntu.com/security/notices/USN-8152-1
- https://ubuntu.com/security/notices/USN-8159-1
- https://ubuntu.com/security/notices/USN-8159-2
- https://ubuntu.com/security/notices/USN-8159-3
- https://ubuntu.com/security/notices/USN-8162-1
- https://ubuntu.com/security/notices/USN-8163-1
- https://ubuntu.com/security/notices/USN-8163-2
- https://ubuntu.com/security/notices/USN-8164-1
- https://ubuntu.com/security/notices/USN-8165-1
- https://ubuntu.com/security/notices/USN-8188-1
- https://ubuntu.com/security/notices/USN-8200-1
- https://ubuntu.com/security/notices/USN-8200-2
- https://ubuntu.com/security/notices/USN-8200-3
- https://ubuntu.com/security/notices/USN-8201-1
- https://ubuntu.com/security/notices/USN-8203-1
- https://ubuntu.com/security/notices/USN-8224-1
- https://ubuntu.com/security/notices/USN-8243-1
- https://ubuntu.com/security/notices/USN-8261-1
- https://ubuntu.com/security/notices/USN-8267-1
- https://www.cve.org/CVERecord?id=CVE-2026-23060