CVE-2021-47607 bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix kernel address leakage in atomic cmpxchg's r0 aux reg The implementation of BPFCMPXCHG on a high level has the following parameters: .-old-val .-new-val BPFR0 = cmpxchg32,64DSTREG + insn-off, BPFR0, SRCREG -mem-loc...

CVE-2021-47607

CVE-2021-47607 is a Linux kernel issue where BPF_CMPXCHG could leak kernel addresses due to the verifier not rejecting unprivileged programs that place a pointer in R0. The high-level POC probes kernel addresses by using the map value pointer as R0 while SRC_REG has a canary, enabling address lea...

CVE-2024-38566

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

CVE-2024-38564

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPFPROGTYPECGROUPSKB attach type enforcement in BPFLINKCREATE bpfprogattach uses attachtypetoprogtype to enforce proper attach type for BPFPROGTYPECGROUPSKB. linkcreate uses bpfprogget and relies on...

AZL-68606 CVE-2024-38564 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPFPROGTYPECGROUPSKB attach type enforcement in BPFLINKCREATE bpfprogattach uses attachtypetoprogtype to enforce proper attach type for BPFPROGTYPECGROUPSKB. linkcreate uses bpfprogget and relies on...

CVE-2024-38566

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

UBUNTU-CVE-2024-38574

In the Linux kernel, the following vulnerability has been resolved: libbpf: Prevent null-pointer dereference when prog to load has no BTF In bpfobjecloadprog, there's no guarantee that obj-btf is non-NULL when passing it to btffd, and this function does not perform any check before dereferencing...

CVE-2024-38566 bpf: Fix verifier assumptions about socket->sk

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

CVE-2024-38566

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

CVE-2024-38566

CVE-2024-38566: In the Linux kernel, the bpf verifier had an incorrect assumption that socket->sk is valid when a trusted socket is used, which may not hold for sockets just created and passed to LSM socket_accept hooks. The fix relaxes the verifier assumption and updates tests. The vulnerabil...

CVE-2024-38566 bpf: Fix verifier assumptions about socket->sk

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

CVE-2024-38566 bpf: Fix verifier assumptions about socket->sk

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket-sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just creat...

CVE-2024-38564 bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPFPROGTYPECGROUPSKB attach type enforcement in BPFLINKCREATE bpfprogattach uses attachtypetoprogtype to enforce proper attach type for BPFPROGTYPECGROUPSKB. linkcreate uses bpfprogget and relies on...

Ubuntu 22.04 LTS : Linux kernel (HWE) vulnerabilities (USN-6818-4)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6818-4 advisory. Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference...

USN-6818-4: Linux kernel (HWE) vulnerabilities

Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service system crash. CVE-2023-6356, CVE-2023-6535, CVE-2023-6536 It was...

PT-2024-29729 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the bpf arena logic in the Linux kernel, which did not account for the mremap operation. This led to a potential use-after-free scenario in the arena vm close...

USN-6817-3: Linux kernel vulnerabilities

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. CVE-2022-38096 Zheng Wang discovered that the Broadc...

Ubuntu 22.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-6818-3)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6818-3 advisory. Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly validate H2C PDU data, leading to a null pointer dereference...

Ubuntu 22.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6821-4)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6821-4 advisory. It was discovered that the ATA over Ethernet AoE driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An...

Ubuntu 24.04 LTS : Linux kernel vulnerabilities (USN-6817-3)

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6817-3 advisory. Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereferenc...