CVE-2025-21955 ksmbd: prevent connection release during oplock break notification

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent connection release during oplock break notification ksmbdwork could be freed when after connection release. Increment rcount of ksmbdconn to indicate that requests are not finished yet and to not release the...

CVE-2025-21955

The CVE-2025-21955 issue affects the Linux kernel’s ksmbd module. Affected component: ksmbd_work and ksmbd_conn handling during oplock break notification. Root cause described: ksmbd_work could be freed after the connection was released, so the r_count of ksmbd_conn is incremented to indicate req...

CVE-2025-21955

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent connection release during oplock break notification ksmbdwork could be freed when after connection release. Increment rcount of ksmbdconn to indicate that requests are not finished yet and to not release the...

CVE-2025-21955 ksmbd: prevent connection release during oplock break notification

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent connection release during oplock break notification ksmbdwork could be freed when after connection release. Increment rcount of ksmbdconn to indicate that requests are not finished yet and to not release the...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from ksmbd potentially releasing connections during oplock interrupt notification...

PT-2025-14336

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved, specifically in the ksmbd component. The issue involved the potential freeing of ksmbd work after connection release during oplock...

PT-2025-14348

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a use-after-free vulnerability in the ksmbd component of the Linux kernel. Specifically, the interim entry of ksmbd work could be deleted after an oplock is freed...

Security update for the Linux Kernel (Live Patch 14 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005565 fixes several issues. The following security issues were fixed: CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans bsc1233712. CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637...

Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005549 fixes several issues. The following security issues were fixed: CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans bsc1233712. CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637...

Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005562 fixes several issues. The following security issues were fixed: CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans bsc1233712. CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637...

Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005559 fixes several issues. The following security issues were fixed: CVE-2024-50264: vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans bsc1233712. CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637...

PT-2025-30851

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the kernel’s ksmbd module related to oplock/lease break acknowledgements. If the ksmbd iov pin rsp function returns an error, accessing opinfo-state can...

kernel: smb: client: fix potential UAF in smb2_is_valid_oplock_break()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in smb2isvalidoplockbreak Skip sessions that are being teared down status == SESEXITING to avoid UAF...

kernel: smb: client: fix potential UAF in is_valid_oplock_break()

A use-after-free flaw was found in the Linux kernel in smb isvalidoplockbreak when exiting a session. This flaw allows a local attacker to crash the system...

SUSE-SU-2024:3834-1 Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506008 fixes several issues. The following security issues were fixed: - CVE-2024-35905: Fixed int overflow for stack access size bsc1226327. - CVE-2024-42133: Bluetooth: Ignore too large handle values in BIG bsc1231419 - CVE-2024-35863: Fixed potential UAF...

SUSE CVE-2024-49988

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbdconn struct When sending an oplock break request, opinfo-conn is used, But freed -conn can be used on multichannel. This patch add a reference count to the ksmbdconn struct so that it can be freed when i...

CVE-2024-49988

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbdconn struct When sending an oplock break request, opinfo-conn is used, But freed -conn can be used on multichannel. This patch add a reference count to the ksmbdconn struct so that it can be freed when i...

DEBIAN-CVE-2024-49988

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbdconn struct When sending an oplock break request, opinfo-conn is used, But freed -conn can be used on multichannel. This patch add a reference count to the ksmbdconn struct so that it can be freed when i...

UBUNTU-CVE-2024-49988

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbdconn struct When sending an oplock break request, opinfo-conn is used, But freed -conn can be used on multichannel. This patch add a reference count to the ksmbdconn struct so that it can be freed when i...

CVE-2024-49988 ksmbd: add refcnt to ksmbd_conn struct

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbdconn struct When sending an oplock break request, opinfo-conn is used, But freed -conn can be used on multichannel. This patch add a reference count to the ksmbdconn struct so that it can be freed when i...