VULNERABILITY

Huawei EulerOS: CVE-2024-49944: kernel security update

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Huawei EulerOS: CVE-2024-49944: kernel security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
10/21/2024
Created
02/12/2025
Added
02/11/2025
Modified
02/19/2025

Description

In the Linux kernel, the following vulnerability has been resolved: sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start In sctp_listen_start() invoked by sctp_inet_listen(), it should set the sk_state back to CLOSED if sctp_autobind() fails due to whatever reason. Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash is NULL. KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617 Call Trace: <TASK> __sys_listen_socket net/socket.c:1883 [inline] __sys_listen+0x1b7/0x230 net/socket.c:1894 __do_sys_listen net/socket.c:1902 [inline]

Solution(s)

  • huawei-euleros-2_0_sp11-upgrade-bpftool
  • huawei-euleros-2_0_sp11-upgrade-kernel
  • huawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelists
  • huawei-euleros-2_0_sp11-upgrade-kernel-tools
  • huawei-euleros-2_0_sp11-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp11-upgrade-python3-perf

References

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