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Vulnerability · Published Feb 22, 2024 · Assigned by Linux

CVE-2024-26591bpf: Fix re-attachment branch in bpf_tracing_prog_attach

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 86.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.76-1DEBIAN-CVE-2024-26591
Debian:13linux6.6.15-1DEBIAN-CVE-2024-26591
Debian:14linux6.6.15-1DEBIAN-CVE-2024-26591
Ubuntu:22.04:LTSlinux5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux5.15.0-102.112UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-aws5.15.0-1057.63USN-6725-2
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1018.18~22.04.1USN-6743-1
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1018.18~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure5.15.0-1060.69USN-6725-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1019.20~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1019.20~22.04.1USN-6743-3
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1USN-6725-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1060.69.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63USN-6725-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1055.63UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1018.18~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1018.18~22.04.1USN-6743-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gke5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1040.46USN-6725-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-28.29~22.04.1USN-6743-1
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-28.29~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1050.53UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1052.58USN-6725-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-kvm5.15.0-1054.59USN-6725-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112USN-6725-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-102.112UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-28.29.1~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-28.29.1~22.04.1USN-6743-2
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48USN-6725-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1048.48UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1015.15UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1015.15USN-6743-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1025.25UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1012.12UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1035.35UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1020.21USN-6743-1
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1020.21UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-oracle5.15.0-1055.61USN-6725-1
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1021.21~22.04.1USN-6743-1
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1021.21~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53USN-6725-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1050.53UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-28.29.1~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1012.13~22.04.1UBUNTU-CVE-2024-26591
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1012.13~22.04.1USN-6743-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2024-26591

Affected products (as reported)

VendorProductVersions
Linux Linux f3a95075549e0e5c36db922caf86847db7a35403 – before a7b98aa10f895e2569403896f2d19b73b6c95653f3a95075549e0e5c36db922caf86847db7a35403 – before 6cc9c0af0aa06f781fa515a1734b1a4239dfd2c0f3a95075549e0e5c36db922caf86847db7a35403 – before 8c8bcd45e9b10eef12321f08d2e5be33d615509cf3a95075549e0e5c36db922caf86847db7a35403 – before 50ae82f080cf87e84828f066c31723b781d68f5bf3a95075549e0e5c36db922caf86847db7a35403 – before 715d82ba636cb3629a6e18a33bb9dbe53f9936ee
Linux Linux 5.13

References