CVE-2024-26591— bpf: Fix re-attachment branch in bpf_tracing_prog_attach
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I. Basic Information for CVE-2024-26591
Vulnerability Information
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Vulnerability Title
bpf: Fix re-attachment branch in bpf_tracing_prog_attach
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re-attachment branch in bpf_tracing_prog_attach The following case can cause a crash due to missing attach_btf: 1) load rawtp program 2) load fentry program with rawtp as target_fd 3) create tracing link for fentry program with target_fd = 0 4) repeat 3 In the end we have: - prog->aux->dst_trampoline == NULL - tgt_prog == NULL (because we did not provide target_fd to link_create) - prog->aux->attach_btf == NULL (the program was loaded with attach_prog_fd=X) - the program was loaded for tgt_prog but we have no way to find out which one BUG: kernel NULL pointer dereference, address: 0000000000000058 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15b/0x430 ? fixup_exception+0x22/0x330 ? exc_page_fault+0x6f/0x170 ? asm_exc_page_fault+0x22/0x30 ? bpf_tracing_prog_attach+0x279/0x560 ? btf_obj_id+0x5/0x10 bpf_tracing_prog_attach+0x439/0x560 __sys_bpf+0x1cf4/0x2de0 __x64_sys_bpf+0x1c/0x30 do_syscall_64+0x41/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Return -EINVAL in this situation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于缺少attach_btf而导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-26591
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Same Patch Batch · Linux · 2024-02-22 · 17 CVEs total
| CVE-2024-26592 | ksmbd: fix UAF issue in ksmbd_tcp_new_connection() | |
| CVE-2023-52452 | bpf: Fix accesses to uninit stack slots | |
| CVE-2023-52451 | powerpc/pseries/memhp: Fix access beyond end of drmem array | |
| CVE-2023-52450 | perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology() | |
| CVE-2023-52449 | mtd: Fix gluebi NULL pointer dereference caused by ftl notifier | |
| CVE-2023-52448 | gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump | |
| CVE-2023-52447 | bpf: Defer the free of inner map when necessary | |
| CVE-2023-52446 | bpf: Fix a race condition between btf_put() and map_free() | |
| CVE-2023-52445 | media: pvrusb2: fix use after free on context disconnection | |
| CVE-2023-52444 | f2fs: fix to avoid dirent corruption | |
| CVE-2024-26589 | bpf: Reject variable offset alu on PTR_TO_FLOW_KEYS | |
| CVE-2024-26590 | erofs: fix inconsistent per-file compression format | |
| CVE-2024-26588 | LoongArch: BPF: Prevent out-of-bounds memory access | |
| CVE-2024-26586 | mlxsw: spectrum_acl_tcam: Fix stack corruption | |
| CVE-2024-26587 | net: netdevsim: don't try to destroy PHC on VFs | |
| CVE-2023-52443 | apparmor: avoid crash when parsed profile name is empty |
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-26591
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