Vulnerability · Published Jun 19, 2024 · Assigned by Linux
CVE-2024-38544RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt
Critical 9.8
In plain English
A critical-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 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 42.8% 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: RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the completer task inline or schedule it. Finally the skb is dereferenced to bump a 'hw' performance counter. This is wrong because if the completer task is already running in a separate thread it may have already processed the skb and freed it which can cause a seg fault. This has been observed infrequently in testing at high scale. This patch fixes this by changing the order of enqueuing the packet until after the counter is accessed.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | bpftool | 7.3.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-doc | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-headers | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-tools | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | libperf | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | perf | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | python3-perf | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | rtla | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| AlmaLinux:9 | rv | 5.14.0-427.33.1.el9_4 | ALSA-2024:5928 |
| Debian:12 | linux | 6.1.94-1 | DEBIAN-CVE-2024-38544 |
| Debian:13 | linux | 6.8.12-1 | DEBIAN-CVE-2024-38544 |
| Debian:14 | linux | 6.8.12-1 | DEBIAN-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux | 5.15.0-127.137 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-127.137 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux | 6.8.0-40.40 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1073.79 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1073.79 | USN-7166-2 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1013.14 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1013.14~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1078.87 | USN-7186-2 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1078.87 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1012.14 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1012.14~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1078.87.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1072.80 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1072.80 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1012.13 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1012.13~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1070.76 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1070.76 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1008.11 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1056.63 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1056.63 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-40.40~22.04.3 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1066.69 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1066.69 | USN-7166-1 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1010.10 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1010.10~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1071.77 | USN-7186-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1071.77 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1070.75 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1070.75 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-127.137 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-127.137 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-40.40.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-40.40.1~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1068.69 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1068.69 | USN-7166-1 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1011.11 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1011.11~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1011.11.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1032.32 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1020.20 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | 6.8.0-1010.10 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1071.77 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1071.77 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1010.10 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1010.10~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1066.69 | USN-7166-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1066.69 | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1009.10 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:24.04:LTS | linux-riscv | 6.8.0-40.40.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-40.40.1~22.04.1 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1039.43 | UBUNTU-CVE-2024-38544 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1039.43 | USN-7166-4 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before c91fb72a2ca6480d8d77262eef52dc5b178463a30b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before de5a059e36657442b5637cc16df5163e435b9cb40b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before e0e14dd35d4242340c7346aac60c7ff8fbf87ffc0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e190b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before 21b4c6d4d89030fd4657a8e7c8110fd9410497940b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before bbad88f111a1829f366c189aa48e7e58e57553fc0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before 30df4bef8b8e183333e9b6e9d4509d552c7da6eb0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 – before 2b23b6097303ed0ba5f4bc036a1c07b6027af5c6 |
| Linux | Linux | 4.12 |
References
- https://git.kernel.org/stable/c/c91fb72a2ca6480d8d77262eef52dc5b178463a3
- https://git.kernel.org/stable/c/de5a059e36657442b5637cc16df5163e435b9cb4
- https://git.kernel.org/stable/c/e0e14dd35d4242340c7346aac60c7ff8fbf87ffc
- https://git.kernel.org/stable/c/faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19
- https://git.kernel.org/stable/c/21b4c6d4d89030fd4657a8e7c8110fd941049794
- https://git.kernel.org/stable/c/bbad88f111a1829f366c189aa48e7e58e57553fc
- https://git.kernel.org/stable/c/30df4bef8b8e183333e9b6e9d4509d552c7da6eb
- https://git.kernel.org/stable/c/2b23b6097303ed0ba5f4bc036a1c07b6027af5c6
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html