CVE-2025-68291 mptcp: Initialise rcv_mss before calling tcp_send_active_reset() in mptcp_do_fastclose().

In the Linux kernel, the following vulnerability has been resolved: mptcp: Initialise rcvmss before calling tcpsendactivereset in mptcpdofastclose. syzbot reported divide-by-zero in tcpselectwindow by MPTCP socket. 0 We had a similar issue for the bare TCP and fixed in commit 499350a5a6e7 "tcp:...

CVE-2025-68291: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mptcp: Initialise rcvmss before calling tcpsendactivereset in mptcpdofastclose. syzbot reported divide-by-zero in tcpselectwindow by MPTCP socket. 0 We had a similar issue for the bare TCP and fixed in commit 499350a5a6e7 "tcp:...

CVE-2023-53783

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

Linux Distros Unpatched Vulnerability : CVE-2023-53783

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615...

EUVD-2023-60123

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

CVE-2023-53783

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

DEBIAN-CVE-2023-53783

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

UBUNTU-CVE-2023-53783

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

CVE-2023-53783 blk-iocost: fix divide by 0 error in calc_lcoefs()

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

CVE-2023-53783 blk-iocost: fix divide by 0 error in calc_lcoefs()

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

CVE-2023-53783

The CVE-2023-53783 issue affects the Linux kernel’s blk-iocost cost model: calc_lcoefs() can divide by zero when the input cost.model overflows ULLONG_MAX, triggered by large values (e.g., echoing a max u64 to /sys/fs/cgroup/io.cost.model). The root cause is an overflow in DIV_ROUND_UP_ULL used i...

CVE-2023-53783

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: fix divide by 0 error in calclcoefs echo max of u64 to cost.model can cause divide by 0 error. echo 8:0 rbps=18446744073709551615 /sys/fs/cgroup/io.cost.model divide error: 0000 1 PREEMPT SMP RIP:...

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 a divide-by-zero error in the calclcoefs function...

CVE-2025-40293

In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITSPERTYPEbitmap-bitmap pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to...

DEBIAN-CVE-2025-40293

In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITSPERTYPEbitmap-bitmap pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to...

CVE-2025-40293

CVE-2025-40293 : Linux kernel iommufd had a division-by-zero risk when calculating dirty-tracking bitmap indices if pgshift == 63, caused by an overflow in computing BITS_PER_TYPE(*bitmap->bitmap) * pgsize. The fix reorganizes the division to divide by shift instead of overflowing, preventing ...

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 Linux kernel that stems from a division overflow that could lead to a divide by zero error...

CVE-2025-40293: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITSPERTYPEbitmap-bitmap pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to...

Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : MuPDF vulnerabilities (USN-7888-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7888-1 advisory. It was discovered that MuPDF could be made to divide by zero. An attacker could possibly use this issue to...

Ubuntu: Security Advisory (USN-7888-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...