517 matches found
CVE-2026-49422
The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, then reacquires the lock. After reacquiring, it verifies that the TCP stack had not been switched away, but did not reload its pointer to the stack's per-connection control block. If userspace...
CVE-2026-49422 Use-after-free in TCP RACK stack option handler
The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, then reacquires the lock. After reacquiring, it verifies that the TCP stack had not been switched away, but did not reload its pointer to the stack's per-connection control block. If userspace...
CVE-2026-68387
In the Linux kernel, the following vulnerability has been resolved: can: raw: add locking for raw flags bitfield With commit 890e5198a6e5 "can: raw: use bitfields to store flags in struct rawsock" the formerly separate integer values have been integrated into a single bitfield. This led to a...
CVE-2026-68387
The CVE-2026-68387 defect affects the Linux kernel CAN raw socket path. A change to store flags in a single bitfield (struct raw_sock) introduced a read-modify-write window during raw_setsockopt() flag updates, enabling concurrent access races. The fix adds a locking wrapper around flag manipulat...
EUVD-2026-55573
In the Linux kernel, the following vulnerability has been resolved: can: raw: add locking for raw flags bitfield With commit 890e5198a6e5 "can: raw: use bitfields to store flags in struct rawsock" the formerly separate integer values have been integrated into a single bitfield. This led to a...
CVE-2026-64581
In the Linux kernel, the following vulnerability has been resolved: xfrm: fix skdstcache double-free in xfrmuserpolicy xfrmuserpolicy clears the socket dst cache with skdstreset, i.e. the non-atomic skdstsetsk, NULL: it reads skdstcache with rcudereferenceprotected, stores NULL and dstreleases th...
CVE-2026-63871
A flaw was found in the Linux kernel's Bluetooth ISO subsystem. This vulnerability, a data-race, occurs because certain functions access socket-related data without proper synchronization. Specifically, isoconnectbis, isoconnectcis, isolistenbis, and isoconnbigsync can read critical fields while...
FreeBSD : FreeBSD -- Use-after-free in TCP RACK stack option handler (6c547c1b-74e2-11f1-958d-bc241121aa0a)
The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 6c547c1b-74e2-11f1-958d-bc241121aa0a advisory. The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, the...
FreeBSD-SA-26:43.tcp
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:43.tcp Security Advisory The FreeBSD Project Topic: Use-after-free in TCP RACK stack option handler Category: core Module: tcp Announced: 2026-06-30 Credits:...
FreeBSD -- Use-after-free in TCP RACK stack option handler
Problem Description: The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, then reacquires the lock. After reacquiring, it verifies that the TCP stack had not been switched away, but did not reload its pointer to the stack's per-connection control...
net/smc: fix sleep-inside-lock in __smc_setsockopt() causing local DoS
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SUSE CVE-2026-53274
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
CVE-2026-53274
A flaw was found in the Linux kernel's net/smc component. A local unprivileged user can exploit a logic flaw, specifically a 'sleep-inside-lock' issue within the smcsetsockopt function. By providing a specially crafted memory page, an attacker can cause the system to halt execution, leading to a...
CVE-2026-53274
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
UBUNTU-CVE-2026-53274
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
CVE-2026-53274 net/smc: fix sleep-inside-lock in __smc_setsockopt() causing local DoS
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
CVE-2026-53274
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
CVE-2026-53274 net/smc: fix sleep-inside-lock in __smc_setsockopt() causing local DoS
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
CVE-2026-53274
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix sleep-inside-lock in smcsetsockopt causing local DoS A logic flaw in smcsetsockopt allows a local unprivileged user to cause a Denial of Service DoS by holding the socket lock indefinitely. The function smcsetsockopt...
PT-2026-52369
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A logic flaw in the smc setsockopt function allows a local unprivileged user to cause a Denial of Service DoS. The issue occurs because the function calls copy from sockptr while holding...