DEBIAN-CVE-2024-26591

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re-attachment branch in bpftracingprogattach The following case can cause a crash due to missing attachbtf: 1 load rawtp program 2 load fentry program with rawtp as targetfd 3 create tracing link for fentry program with...

DEBIAN-CVE-2023-52446

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a race condition between btfput and mapfree When running ./testprogs -j in my local vm with latest kernel, I once hit a kasan error like below: 1887.184724 BUG: KASAN: slab-use-after-free in bpfrbrootfree+0x1f8/0x2b0...

UBUNTU-CVE-2023-52446

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a race condition between btfput and mapfree When running ./testprogs -j in my local vm with latest kernel, I once hit a kasan error like below: 1887.184724 BUG: KASAN: slab-use-after-free in bpfrbrootfree+0x1f8/0x2b0...

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 race condition between btfput and mapfree...

PT-2023-8763 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.7.0-rc3-00699-g90679706d486-dirty 494 Description: The vulnerability is related to a race condition between btf put and map free in the Linux kernel. This issue can lead to a slab-use-after-free error,...

kernel: bpf: prevent decl_tag from being referenced in func_proto

A flaw was found in the Linux kernel's BPF BTF BPF Type Format validation. The BTF parser allows a funcproto type to reference a decltag as its return type, which is invalid. When btftypeidsize encounters this unexpected type, it triggers a kernel warning. This can be exploited via the bpf syscal...

PT-2023-36023 · Git +1 · Libbpf

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided description. Description: A heap-buffer-overflow READ 4 crash has been reported. The crash involves the functions btf ensure modifiable, btf add var, and bpf object collect extern...

kernel: bpf: Fix UAF due to race between btf_try_get_module and load_module

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF due to race between btftrygetmodule and loadmodule While working on code to populate kfunc BTF ID sets for module BTF from its initcall, I noticed that by the time the initcall is invoked, the module BTF can already ...

SUSE 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...

SUSE CVE-2022-3534

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btfdumpnamedups of the file tools/lib/bpf/btfdump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and...

PT-2023-33635 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.16 Description: A bug in BTF ID LIST has been identified when CONFIG DEBUG INFO BTF is not set. The actual impact and potential for attack have not been proven yet. Recommendations: For Linux Kernel version...

PT-2025-54076

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue where a warning was triggered in the btf type id size function when processing certain BPF Berkeley Packet Filter types. Specifically, a warning occurr...

CVE-2022-3534

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btfdumpnamedups of the file tools/lib/bpf/btfdump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and...

DEBIAN-CVE-2022-3534

A vulnerability has been found in Linux Kernel up to 5.10.162/5.15.85/6.0.15/6.1.1. The impacted element is the function btfdumpnamedups of the file tools/lib/bpf/btfdump.c of the component libbpf. The manipulation leads to use after free. Upgrading to version 5.10.163, 5.15.86, 6.0.16, 6.1.2 and...

PT-2022-7029

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A critical vulnerability has been found in the Linux Kernel, specifically in the libbpf component. The issue is related to the function btf dump name dups of the file tools/lib/bpf/btf...

The vulnerability of the BPF_BTF_LOAD() function in the eBPF subsystem of Linux’s operating systems allows a malicious actor to escalate their privileges or cause service interruptions.

The vulnerability of the BPFBTFLOAD function in the eBPF subsystem of Linux kernels involves operations that go beyond the buffer boundaries in memory. Exploiting this vulnerability can allow attackers to gain increased privileges or cause system failures...

AZL-9241 CVE-2022-0500 affecting package kernel for versions less than 5.15.37.1-2

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...

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. Mitigation The default Red Hat...

gcc-toolset-11-gcc security update

11.2.1-1.2.0.1 - Add -ftrivial-auto-var-init support from GCC12 Reviewed-by: Jose E. Marchesi - Add CTF/BTF support Reviewed-by: Qing Zhao 11.2.1-1.2 - add -Wbidirectional patch 2017819...

gcc security and bug fix update

8.5.0-3.0.2 - Fix Orabug 33451471 and backport CTF/BTF enhancements ctfc: Free CTF container elements in ctfcdeletecontainer ctf: Do not warn for CTF not supported for GNU GIMPLE ICE in btffinalize when compiling with -gbtf PR debug/102507, Orabug 33451471 Reviewed-by: Jose E. Marchesi 8.5.0-3.0....