Все бюллетени/sisyphus/ALT-PU-2026-9917-1
ALT-PU-2026-9917-1

Обновление пакета kernel-image-7.0 в ветке sisyphus

Версия7.0.6-alt1
Задание#417781
Опубликовано2026-05-11
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (2)

BDU:2026-06470
HIGH7.8

Уязвимость модуля RxRPC ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Опубликовано: 2026-05-11Изменено: 2026-06-16
CVSS 3.xВЫСОКАЯ 7.8
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0ВЫСОКАЯ 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
Ссылки
CVE-2026-43500
HIGH7.8

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused.

Опубликовано: 2026-05-11Изменено: 2026-06-17
CVSS 3.xВЫСОКАЯ 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ссылки