UBUNTU-CVE-2025-39816

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: always use READONCE to read ring provided buffer lengths Since the buffers are mapped from userspace, it is prudent to use READONCE to read the value into a local variable, and use that for any other actions taken...

CVE-2025-39822 io_uring/kbuf: fix signedness in this_len calculation

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: fix signedness in thislen calculation When importing and using buffers, buf-len is considered unsigned. However, buf-len is converted to signed int when committing. This can lead to unexpected behavior if the buffer...

CVE-2025-39822 io_uring/kbuf: fix signedness in this_len calculation

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: fix signedness in thislen calculation When importing and using buffers, buf-len is considered unsigned. However, buf-len is converted to signed int when committing. This can lead to unexpected behavior if the buffer...

CVE-2025-39816 io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: always use READONCE to read ring provided buffer lengths Since the buffers are mapped from userspace, it is prudent to use READONCE to read the value into a local variable, and use that for any other actions taken...

CVE-2025-39816 io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: always use READONCE to read ring provided buffer lengths Since the buffers are mapped from userspace, it is prudent to use READONCE to read the value into a local variable, and use that for any other actions taken...

Linux Kernel Security Vulnerabilities

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 Linux kernel that stems from a sign problem in buffer length calculations that could lead to unexpected behavior...

Linux Kernel Security Vulnerabilities

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 a failure to read the ring buffer length using READONCE, which could lead to data inconsistency...

DEBIAN-CVE-2023-53220

In the Linux kernel, the following vulnerability has been resolved: media: az6007: Fix null-ptr-deref in az6007i2cxfer In az6007i2cxfer, msg is controlled by user. When msgi.buf is null and msgi.len is zero, former checks on msgi.buf would be passed. Malicious data finally reach az6007i2cxfer. If...

CVE-2022-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb-len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case where skb-len == 0 when we enter devqueuexmit: WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 skbassertlen...

Linux Kernel Security Vulnerabilities

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 a failure to check buffer lengths and incorrect use of the snprintf function, which could result in a buffer...

CVE-2025-39713 media: rainshadow-cec: fix TOCTOU race condition in rain_interrupt()

In the Linux kernel, the following vulnerability has been resolved: media: rainshadow-cec: fix TOCTOU race condition in raininterrupt In the interrupt handler raininterrupt, the buffer full check on rain-buflen is performed before acquiring rain-buflock. This creates a Time-of-Check to Time-of-Us...

Security update for opensc

This update for opensc fixes the following issues: CVE-2023-5992: Side-channel leaks while stripping encryption PKCS1 padding bsc1219386. CVE-2024-8443: Heap buffer overflow in OpenPGP driver when generating key bsc1230364. CVE-2024-45620: Incorrect handling of the length of buffers or files in...

SUSE CVE-2025-38680

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvcparseformat The buffer length check before calling uvcparseformat only ensured that the buffer has at least 3 bytes buflen 2, buf the function accesses buffer3, requiring at...

UBUNTU-CVE-2025-38680

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvcparseformat The buffer length check before calling uvcparseformat only ensured that the buffer has at least 3 bytes buflen 2, buf the function accesses buffer3, requiring at...

CVE-2025-38680 media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvcparseformat The buffer length check before calling uvcparseformat only ensured that the buffer has at least 3 bytes buflen 2, buf the function accesses buffer3, requiring at...

CVE-2025-38680

The CVE CVE-2025-38680 affects the Linux kernel media: uvcvideo component, where a 1-byte out-of-bounds read can occur in uvc_parse_format(). The root cause is a buffer length check that only guaranteed buf > 2, while the code accesses buffer[3], requiring at least 4 bytes. The vulnerability’s...

CVE-2025-38680 media: uvcvideo: Fix 1-byte out-of-bounds read in uvc_parse_format()

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix 1-byte out-of-bounds read in uvcparseformat The buffer length check before calling uvcparseformat only ensured that the buffer has at least 3 bytes buflen 2, buf the function accesses buffer3, requiring at...

pptp: ensure minimal skb length in pptp_xmit()

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Libopensc: incorrect handling of the length of buffers or files in pkcs15init

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PT-2025-37961

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue in the io uring/kbuf subsystem where buffer lengths are not consistently read. This is due to the use of potentially unstable reads of user-space mappe...