DEBIAN-CVE-2024-40909

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free in bpflinkfree After commit 1a80dbcb2dba, bpflink can be freed by link-ops-deallocdeferred, but the code still tests and uses link-ops-dealloc afterward, which leads to a use-after-free as...

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 Linux kernel, which stems from a failure of the bpf component to properly set the runtime environment when using the testrun interface...

PT-2024-30699 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue concerns the Linux kernel, where the function adjust jmp off incorrectly used the insn-imm field for all overflow checks. This is incorrect because it should only be done for...

PT-2024-32172

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to the Linux kernel, where the lwt seg6 related BPF ops can be invoked via bpf test run without entering input action end bpf first. This is because the per-CPU...

bpf: Fix DEVMAP_HASH overflow check on 32-bit arches

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SUSE CVE-2022-48770

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL ptregs in bpfgettaskstack taskptregs can return NULL on powerpc for kernel threads. This is then used in bpfgetstack to check for user mode, resulting in a kernel oops. Guard against this by...

DEBIAN-CVE-2022-48755

In the Linux kernel, the following vulnerability has been resolved: powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 Johan reported the below crash with testbpf on ppc64 e5500: testbpf: 296 ALUENDFROMLE 64: 0x0123456789abcdef - 0x67452301 jited:1 Oops: Exception in kernel mode,...

UBUNTU-CVE-2022-48714

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

UBUNTU-CVE-2021-47607

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...

DEBIAN-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...

UBUNTU-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...

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 a security issue in bpf...

SUSE CVE-2022-0500

A flaw was found in unrestricted eBPF usage by the BPFBTFLOAD, leading to a possible out-of-bounds memory write in the Linux kernel's BPF subsystem due to the way a user loads BTF. This flaw allows a local user to crash or escalate their privileges on the system...

SUSE CVE-2024-36938

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: Fix NULL pointer dereference in skpsockskbingressenqueue Fix NULL pointer data-races in skpsockskbingressenqueue which syzbot reported 1. 1 BUG: KCSAN: data-race in skpsockdrop / skpsockskbingressenqueue write to...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which stems from a lack of checking of the size of values in the Bloom filter in the bpf module when it is created, which may cause the kernel to cras...

The vulnerability of the bnx2x_tpa_stop() function in the drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c module of the Linux kernel’s BPF component allows a hacker to cause a service failure.

The vulnerability of the bnx2xtpastop function in the drivers/net/ethernet/broadcom/bnx2x/bnx2xcmn.c module of the Linux kernel’s BPF component is related to a memory leak. Exploiting this vulnerability allows an attacker to cause a system failure...

SUSE CVE-2021-47303

In the Linux kernel, the following vulnerability has been resolved: bpf: Track subprog poke descriptors correctly and fix use-after-free Subprograms are calling mappoketrack, but on program release there is no hook to call mappokeuntrack. However, on program release, the aux memory and poke...

SUSE CVE-2021-47486

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The bpfjitbinaryfree function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NRJITITERATIONS steps, jitdata-header will be NULL, which triggers a NULL...

kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges

A flaw was found in unrestricted eBPF usage by the BPFBTFLOAD, leading to a possible out-of-bounds memory write in the Linux kernel’s BPF subsystem due to the way a user loads BTF. This flaw allows a local user to crash or escalate their privileges on the system...

kernel: bpf, cpumap: Make sure kthread is running before map update returns

A race condition was found in the Linux kernel's BPF cpumap implementation in the kthread lifecycle management. A local user can trigger this issue by running XDP redirect operations when the per-CPU kthread is stopped prematurely before processing queued frames, causing the cleanup code to find ...