CVE-2025-40271

CVE-2025-40271: Linux kernel vulnerability in fs/proc related to proc_readdir_de() UAF. The issue arises when a PDE is erased from the subdir red-black tree with rb_erase() but the node is not cleared, allowing a use-after-free in pde_subdir_next() after the entry is released. This can lead to pr...

CVE-2025-40271

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix uaf in procreaddirde Pde is erased from subdir rbtree through rberase, but not set the node to EMPTY, which may result in uaf access. We should use RBCLEARNODE set the erased node to EMPTY, then pdesubdirnext will...

CVE-2025-40271 fs/proc: fix uaf in proc_readdir_de()

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix uaf in procreaddirde Pde is erased from subdir rbtree through rberase, but not set the node to EMPTY, which may result in uaf access. We should use RBCLEARNODE set the erased node to EMPTY, then pdesubdirnext will...

CVE-2025-40271 fs/proc: fix uaf in proc_readdir_de()

In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix uaf in procreaddirde Pde is erased from subdir rbtree through rberase, but not set the node to EMPTY, which may result in uaf access. We should use RBCLEARNODE set the erased node to EMPTY, then pdesubdirnext will...

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 fs proc not properly cleaning up nodes in procreaddirde, which could lead to reuse after release...

CVE-2025-64750 Singluarity ineffectively applies of selinux / apparmor LSM process labels

SingularityCE and SingularityPRO are open source container platforms. Prior to SingularityCE 4.3.5 and SingularityPRO 4.1.11 and 4.3.5, if a user relies on LSM restrictions to prevent malicious operations then, under certain circumstances, an attacker can redirect the LSM label write operation so...

SUSE-SU-2025:21180-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-21816: hrtimers: Force migrate away hrtimers queued after bsc1238472. - CVE-2025-38653: proc: use the same treatment to check proclseek as ones for procreaditer...

runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects

A flaw was found in runc. This attack is a more sophisticated variant of CVE-2019-16884, which was a flaw that allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process...

runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects

A flaw was found in runc. This attack is a more sophisticated variant of CVE-2019-16884, which was a flaw that allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process...

runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects

A flaw was found in runc. This attack is a more sophisticated variant of CVE-2019-16884, which was a flaw that allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process...

runc: container escape via 'masked path' abuse due to mount race conditions

A flaw was found in runc. This flaw exploits an issue with how masked paths are implementedin runc. When masking files, runc will bind-mount the container's /dev/null inode on top of the file. However, if an attacker can replace /dev/null with a symlink to some other procfs file, runc will instea...

kernel: nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails

In the Linux kernel, the following vulnerability has been resolved: nfs: Clean up /proc/net/rpc/nfs when nfsfsprocnetinit fails. syzbot reported a warning below 1 following a fault injection in nfsfsprocnetinit. 0 When nfsfsprocnetinit fails, /proc/net/rpc/nfs is not removed. Later, rpcprocexit...

runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects

A flaw was found in runc. This attack is a more sophisticated variant of CVE-2019-16884, which was a flaw that allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process...

runc: container escape via 'masked path' abuse due to mount race conditions

A flaw was found in runc. This flaw exploits an issue with how masked paths are implementedin runc. When masking files, runc will bind-mount the container's /dev/null inode on top of the file. However, if an attacker can replace /dev/null with a symlink to some other procfs file, runc will instea...

CVE-2025-52881 runc: LSM labels can be bypassed with malicious config using dummy procfs files

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts we have also verified thi...

EUVD-2025-37940

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts we have also verified thi...

youki 安全漏洞

youki is a youki open source implementation of the OCI runtime specification in Rust. A security vulnerability exists in youki version 0.5.6 and earlier, which stems from insufficient validation of the write target by the apparmor handler, which in combination with path substitution during pathna...

EUVD-2025-37938

Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writes to unintended procfs locations. While resolving a path...

GHSA-VF95-55W6-QMRF youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects

Impact youki’s apparmor handling performs insufficiently strict write-target validation, which—combined with path substitution during pathname resolution—can allow writes to unintended procfs locations. Weak write-target check youki only verifies that the destination lies somewhere under procfs. ...

UBUNTU-CVE-2025-52881

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts we have also verified thi...