CVE-2026-43006

CVE-2026-43006 (Linux kernel io_uring rsr/rsrc): A zero-length fixed-buffer import in io_import_fixed() could trigger a slab-out-of-bounds read due to a boundary check that allows len == 0 to be processed. The underlying issue is in validate_fixed_range(), which permits buf_addr at the end of the...

CVE-2026-43006 io_uring/rsrc: reject zero-length fixed buffer import

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: reject zero-length fixed buffer import validatefixedrange admits bufaddr at the exact end of the registered region when len is zero, because the check uses strict greater-than bufend imu-ubuf + imu-len. ioimportfixe...

CVE-2026-43006

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: reject zero-length fixed buffer import validatefixedrange admits bufaddr at the exact end of the registered region when len is zero, because the check uses strict greater-than bufend imu-ubuf + imu-len. ioimportfixe...

CVE-2026-31774 io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs()

In the Linux kernel, the following vulnerability has been resolved: iouring/net: fix slab-out-of-bounds read in iobundlenbufs sqe-len is u32 but gets stored into sr-len which is int. When userspace passes sqe-len values exceeding INTMAX e.g. 0xFFFFFFFF, sr-len overflows to a negative value. This...

CVE-2026-31774

In the Linux kernel, the following vulnerability has been resolved: iouring/net: fix slab-out-of-bounds read in iobundlenbufs sqe-len is u32 but gets stored into sr-len which is int. When userspace passes sqe-len values exceeding INTMAX e.g. 0xFFFFFFFF, sr-len overflows to a negative value. This...

CVE-2026-43006: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: reject zero-length fixed buffer import validatefixedrange admits bufaddr at the exact end of the registered region when len is zero, because the check uses strict greater-than bufend imu-ubuf + imu-len. ioimportfixe...

CVE-2026-31774: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: iouring/net: fix slab-out-of-bounds read in iobundlenbufs sqe-len is u32 but gets stored into sr-len which is int. When userspace passes sqe-len values exceeding INTMAX e.g. 0xFFFFFFFF, sr-len overflows to a negative value. This...

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 an integer overflow in the iouring network operation resulting in an out-of-bounds read, which could lead to...

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 bvec skipping a logical out-of-bounds read during a zero-length fixed buffer import in iouring rsrc, which...

Unbreakable Enterprise kernel security update: Copy Fail

5.4.17-2136.354.4.2 - crypto: algifaead - Fix minimum RX size check for decryption Herbert Xu Orabug: 39292250 - crypto: afalg - Fix page reassignment overflow in afalgpulltsgl Herbert Xu Orabug: 39292250 - crypto: authencesn - Fix src offset when decrypting in-place Herbert Xu Orabug: 39292250 -...

The vulnerability of the io_msg_send_fd() function in the io_uring/msg_ring.c module, a component of the Linux kernel’s asynchronous input/output interface, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the iomsgsendfd function in the iouring/msgring.c module, a component of the Linux kernel’s asynchronous input/output interface, is related to the assignment of the NULL pointer. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrit...

Linux Distros Unpatched Vulnerability : CVE-2026-31484

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending...

SUSE CVE-2026-31484

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...

EUVD-2026-24847

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...

CVE-2026-31484

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...

CVE-2026-31484

In the Linux kernel, CVE-2026-31484 is addressed in io_uring/fdinfo: fix OOB read during SQE_MIXED wrap checks in __io_uring_show_fdinfo(). The issue occurred when processing 128-byte SQEs on IORING_SETUP_SQE_MIXED rings: the previous wrap condition (++sq_head & sq_mask) == 0 could pass while the...

CVE-2026-31484 io_uring/fdinfo: fix OOB read in SQE_MIXED wrap check

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...

CVE-2026-31484 io_uring/fdinfo: fix OOB read in SQE_MIXED wrap check

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013855)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013855 advisory. In the Linux kernel, the following vulnerability has been resolved: iouring: drop any code related to SCMRIGHTS This is dead code after we dropped support for passin...

CVE-2026-31484: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: fix OOB read in SQEMIXED wrap check iouringshowfdinfo iterates over pending SQEs and, for 128-byte SQEs on an IORINGSETUPSQEMIXED ring, needs to detect when the second half of the SQE would be past the end of the...