CVE-2026-49424

The Linux waitid implementation translates a FreeBSD siginfot struct into a stack-declared Linux siginfot. It did not first zero the stack struct. An unprivileged user may observe 104 bytes of uninitialized kernel stack data, which may contain sensitive information...

CVE-2026-58084

To retrieve the previous timer value, the kernel calls realtimergettime, which obtains the current time for the timer's clock. For a timer using CLOCKTAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to...

CVE-2026-74358

A flaw was found in the ext4 filesystem component of the Linux kernel. On 64-bit systems, an incorrect mapping of wait/wake bits during fast commits could lead to unexpected behavior. This issue, if triggered, may result in system instability or data integrity problems...

CVE-2026-74314

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter subsystem. This vulnerability arises from improper handling of special fields during the recycling of map values, which can lead to unsafe destruction operations. Specifically, in tracing programs operating within a Non-Maskable...

EUVD-2026-62365

The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding program headers, then iterated over the map a second time to populate them. A process sharing the address space via rfork2 can mutate the map between the two passes, causing the second...

CVE-2026-58088

Affected: All supported FreeBSD versions. Root cause: A race condition in ELF core dump code — a second-pass write to the program-header buffer is not bounds-checked against the count from the first pass, so a process sharing the address space via rfork(2) can mutate the VM map between passes. Im...

CVE-2026-58088 Race condition in ELF core dump segment counting

The ELF core dump code counted the number of dumpable VM map entries, allocated a buffer for the corresponding program headers, then iterated over the map a second time to populate them. A process sharing the address space via rfork2 can mutate the map between the two passes, causing the second...

EUVD-2026-62364

The GETALL and SETALL commands in semctl2 recorded the number of semaphores in the target set, dropped the lock protecting the set, allocated a buffer sized for that count, and reacquired the lock. A sequence-number check was used to verify that the set had not been replaced in the interim, but t...

CVE-2026-58087 Heap out-of-bounds access in semctl(2)

The GETALL and SETALL commands in semctl2 recorded the number of semaphores in the target set, dropped the lock protecting the set, allocated a buffer sized for that count, and reacquired the lock. A sequence-number check was used to verify that the set had not been replaced in the interim, but t...

CVE-2026-58087

CVE-2026-58087 is a heap out-of-bounds access in the GETALL and SETALL commands of FreeBSD's semctl(2) system call. The root cause is a sequence-number wrap after 0x8000 create/destroy cycles: an unprivileged local user can rapidly destroy and recreate semaphore sets at the same index, causing a ...

CVE-2026-74375

A flaw was found in the Linux kernel's RAID1 and RAID10 subsystems. When handling read errors, a specific sequence of operations involving cloned I/O requests and array suspension can lead to a deadlock. This can cause the system to become unresponsive, resulting in a Denial of Service DoS...

CVE-2026-74364

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF subsystem. Exclusive maps, which are designed to be used by a single program, can be incorrectly inserted as inner maps within a map-in-map structure. This bypasses the intended security checks, allowing an unrelated program to...

CVE-2026-74356

A flaw was found in the Linux kernel's vhost subsystem. An incorrect return value from the vhostgetavailidx function can cause the host to livelock. A malicious guest operating system OS can exploit this by not processing virtqueue entries, leading to the host repeatedly disabling notifications a...

CVE-2026-58084 Kernel stack disclosure via timer_settime(2)

To retrieve the previous timer value, the kernel calls realtimergettime, which obtains the current time for the timer's clock. For a timer using CLOCKTAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to...

EUVD-2026-62338

To retrieve the previous timer value, the kernel calls realtimergettime, which obtains the current time for the timer's clock. For a timer using CLOCKTAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to...

CVE-2026-58084

FreeBSD 15.0 and 15.1 are affected by a kernel stack disclosure in the POSIX interval timer subsystem (ktimer). When an unprivileged local user calls timer_settime(2) with a non-NULL old_value argument on a CLOCK_TAI timer, the kernel invokes realtimer_gettime() to retrieve the previous timer val...

CVE-2026-58083

FreeBSD 15.1 contains a use-after-free vulnerability in the kqueue kernel subsystem's copy-on-fork path. During fork(2), a timer-based knote could fire and be enqueued on the kqueue's active list before the copy completed. The copy routine failed to account for this, potentially enqueuing the kno...

CVE-2026-58083 Use-after-free in kqueue copy-on-fork

While the kernel was copying knotes during fork, a knote with a timer-based filter could fire and be enqueued on the kqueue's active list before the copy was complete. The copy routine did not account for this and could enqueue the new knote a second time, corrupting the active list. In addition,...

CVE-2026-72432

A flaw was found in the Linux kernel's Trusted Platform Module TPM Command Response Buffer CRB driver. This vulnerability occurs because the driver does not properly check for the presence of an Advanced Configuration and Power Interface ACPI companion object during device probing. An attacker...

CVE-2026-72352

A flaw was found in the Linux kernel's Human Interface Device HID Berkeley Packet Filter BPF component. An integer overflow, where a calculation exceeds the maximum value an integer type can store, in the hidbpfgetdata function's range check can occur when processing a very large size value. This...