CVE-2025-38196 io_uring/rsrc: validate buffer count with offset for cloning

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARNON for kmalloc attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 kvmallocnodenoprof+0x520/0x640 mm/slub.c:5024...

CVE-2025-38196 io_uring/rsrc: validate buffer count with offset for cloning

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARNON for kmalloc attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 kvmallocnodenoprof+0x520/0x640 mm/slub.c:5024...

CVE-2025-38196

CVE-2025-38196 affects the Linux kernel io_uring resource (io_uring/rsrc) cloning path. The bug arises when registering clone buffers where the sum of offset and count exceeds the available range, causing an allocation via kmalloc to be too large and potentially triggering a WARN_ON in kmalloc (m...

CVE-2025-38196: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: validate buffer count with offset for cloning syzbot reports that it can trigger a WARNON for kmalloc attempt that's too big: WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 kvmallocnodenoprof+0x520/0x640 mm/slub.c:5024...

SUSE CVE-2025-38106

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

CVE-2025-38106

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

DEBIAN-CVE-2025-38106

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

UBUNTU-CVE-2025-38106

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

CVE-2025-38106

Mode C: Concrete details found. The CVE-2025-38106 issue is in the Linux kernel io_uring/sqpoll path, where a use-after-free of sq->thread could occur when __io_uring_show_fdinfo() uses a freed task_struct. The SUSE/OpenSUSE advisory notes the fix: assign and look up sq->thread under RCU wi...

CVE-2025-38106

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

CVE-2025-38106 io_uring: fix use-after-free of sq->thread in __io_uring_show_fdinfo()

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

CVE-2025-38106 io_uring: fix use-after-free of sq->thread in __io_uring_show_fdinfo()

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

CVE-2025-38106 io_uring: fix use-after-free of sq->thread in __io_uring_show_fdinfo()

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

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 iouring releasing sq-thread after use in iouringshowfdinfo...

CVE-2025-38106: Use After Free

In the Linux kernel, the following vulnerability has been resolved: iouring: fix use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm: a.out...

Linux kernel io_uring/tctx.c DoS

The vulnerability of the iouring/tctx.c component in the Linux operating system’s kernel is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a perpetrator to cause a service failure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iouring/net: Fixed an abuse of ioreqpostcqe by sending bundled requests. 114.987980T5313 WARNING: CPU: 6 PID: 5313 at iouring/iouring.c:872 ioreqpostcqe+0x12e/0x4f0 114.991597T5313 RIP: 0010:ioreqpostcqe+0x12e/0x4f0 115.001880T53...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: iouring: fixed a use-after-free of sq-thread in iouringshowfdinfo syzbot reports: BUG: KASAN: slab-use-after-free in getrusage+0x1109/0x1a60 Read of size 8 at addr ffff88810de2d2c8 by task a.out/304 CPU: 0 UID: 0 PID: 304 Comm...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: Reallocate the buf lists upon upgrade. The function IORINGREGISTERPBUFRING can reuse an old struct iobufferlist if it was created for a legacy selected buffer and has been emptied. This violates the requirement that...

SUSE CVE-2025-38002

In the Linux kernel, the following vulnerability has been resolved: iouring/fdinfo: grab ctx-uringlock around iouringshowfdinfo Not everything requires locking in there, which is why the 'haslock' variable exists. But enough does that it's a bit unwieldy to manage. Wrap the whole thing in a...