CVE-2021-29154

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpfjitcomp.c and arch/x86/net/bpfjitcomp32.c...

CVE-2021-29154

CVE-2021-29154 affects the Linux kernel BPF JIT implementation (arch/x86 net/bpf_jit_comp.c and bpf_jit_comp32.c). Connected advisories (e.g., ALAS2KERNEL-5.4-2022-003) confirm a local privilege escalation due to incorrect computation of branch displacements in the BPF JIT, enabling arbitrary cod...

PT-2021-2653 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 5.11.12 Description: The issue is related to incorrect computation of branch displacements in BPF JIT compilers, allowing them to execute arbitrary code within the kernel context. This affects files...

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF) which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c) aka CID-350a5c4dd245.

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An issue was discovered in the Linux kernel before 5.11.11. The user mode driver (UMD) has a copy_process() memory leak related to a lack of cleanup steps in kernel/usermode_driver.c and kernel/bpf/preload/bpf_preload_kern.c aka CID-f60a85cad677.

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The vulnerability in the kernel/bpf/verifier.c file of the Linux operating system allows a hacker to gain unauthorized access to protected information.

The vulnerability in the kernel/bpf/verifier.c file of the Linux operating system is related to a single-bit offset error. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

CVE-2021-29648

A flaw was found in the Linux kernel. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt...

CVE-2021-29649

A flaw was found in the Linux kernel. The user mode driver UMD has a copyprocess memory leak, related to a lack of cleanup steps in kernel/usermodedriver.c and kernel/bpf/preload/bpfpreloadkern.c...

Unbreakable Enterprise kernel-container security update

5.4.17-2102.200.13.el7 - bpf, selftests: Fix up some testverifier cases for unprivileged Piotr Krysiuk Orabug: 32656761 CVE-2020-27170 CVE-2020-27171 - bpf: Add sanity check for upper ptrlimit Piotr Krysiuk Orabug: 32656761 CVE-2020-27170 CVE-2020-27171 - bpf: Simplify alulimit masking for pointe...

Linux kernel denial of service vulnerability (CNVD-2021-25617)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A denial of service vulnerability exists in Linux kernel versions prior to 5.11.11. The vulnerability stems from the...

Unbreakable Enterprise kernel security update

5.4.17-2102.200.13 - bpf, selftests: Fix up some testverifier cases for unprivileged Piotr Krysiuk Orabug: 32656761 CVE-2020-27170 CVE-2020-27171 - bpf: Add sanity check for upper ptrlimit Piotr Krysiuk Orabug: 32656761 CVE-2020-27170 CVE-2020-27171 - bpf: Simplify alulimit masking for pointer...

Debian DLA-2610-1 : linux-4.19 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to the execution of arbitrary code, privilege escalation, denial of service, or information leaks. CVE-2020-27170, CVE-2020-27171 Piotr Krysiuk discovered flaws in the BPF subsystem's checks for information leaks throu...

CVE-2021-29648

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt in mapcreate in...

CVE-2021-29648

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt in mapcreate in...

AZL-6552 CVE-2021-29649 affecting package kernel for versions less than 5.10.78.1-1

An issue was discovered in the Linux kernel before 5.11.11. The user mode driver UMD has a copyprocess memory leak, related to a lack of cleanup steps in kernel/usermodedriver.c and kernel/bpf/preload/bpfpreloadkern.c, aka CID-f60a85cad677...

DEBIAN-CVE-2021-29649

An issue was discovered in the Linux kernel before 5.11.11. The user mode driver UMD has a copyprocess memory leak, related to a lack of cleanup steps in kernel/usermodedriver.c and kernel/bpf/preload/bpfpreloadkern.c, aka CID-f60a85cad677...

Format string

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt in mapcreate in...

Memory corruption

An issue was discovered in the Linux kernel before 5.11.11. The user mode driver UMD has a copyprocess memory leak, related to a lack of cleanup steps in kernel/usermodedriver.c and kernel/bpf/preload/bpfpreloadkern.c, aka CID-f60a85cad677...

CVE-2021-29649

An issue was discovered in the Linux kernel before 5.11.11. The user mode driver UMD has a copyprocess memory leak, related to a lack of cleanup steps in kernel/usermodedriver.c and kernel/bpf/preload/bpfpreloadkern.c, aka CID-f60a85cad677...

CVE-2021-29648

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolvedids and resolvedsizes are intentionally uninitialized in the vmlinux BPF Type Format BTF, which can cause a system crash upon an unexpected access attempt in mapcreate in...