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Vulnerability · Published Jun 19, 2024 · Assigned by Linux

CVE-2024-38555net/mlx5: Discard command completions in internal error

High 7.0

In plain English

A high-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 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.3%top 82.1% 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: net/mlx5: Discard command completions in internal error Fix use after free when FW completion arrives while device is in internal error state. Avoid calling completion handler in this case, since the device will flush the command interface and trigger all completions manually. Kernel log: ------------[ cut here ]------------ refcount_t: underflow; use-after-free. ... RIP: 0010:refcount_warn_saturate+0xd8/0xe0 ... Call Trace: <IRQ> ? __warn+0x79/0x120 ? refcount_warn_saturate+0xd8/0xe0 ? report_bug+0x17c/0x190 ? handle_bug+0x3c/0x60 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? refcount_warn_saturate+0xd8/0xe0 cmd_ent_put+0x13b/0x160 [mlx5_core] mlx5_cmd_comp_handler+0x5f9/0x670 [mlx5_core] cmd_comp_notifier+0x1f/0x30 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 mlx5_eq_async_int+0xf6/0x290 [mlx5_core] notifier_call_chain+0x35/0xb0 atomic_notifier_call_chain+0x16/0x20 irq_int_handler+0x19/0x30 [mlx5_core] __handle_irq_event_percpu+0x4b/0x160 handle_irq_event+0x2e/0x80 handle_edge_irq+0x98/0x230 __common_interrupt+0x3b/0xa0 common_interrupt+0x7b/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.94-1DEBIAN-CVE-2024-38555
Debian:13linux6.8.12-1DEBIAN-CVE-2024-38555
Debian:14linux6.8.12-1DEBIAN-CVE-2024-38555
Ubuntu:22.04:LTSlinux5.15.0-121.131UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux5.15.0-121.131USN-7007-1
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws5.15.0-1069.75UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws5.15.0-1069.75USN-7007-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure5.15.0-1072.81USN-7009-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1072.81UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1072.81.1USN-7009-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1072.81.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gcp5.15.0-1068.76USN-7007-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1068.76UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gke5.15.0-1066.72UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gke5.15.0-1066.72USN-7007-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1052.59USN-7007-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1052.59UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-ibm5.15.0-1062.65UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-ibm5.15.0-1062.65USN-7007-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1064.70USN-7007-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1064.70UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-kvm5.15.0-1066.71UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-kvm5.15.0-1066.71USN-7007-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-121.131USN-7007-3
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-121.131UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1064.65USN-7007-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1064.65UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1028.28UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1016.16UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oracle5.15.0-1067.73USN-7007-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1067.73UBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-raspi5.15.0-1062.65UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-raspi5.15.0-1062.65USN-7007-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-38555
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-38555
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-38555

Affected products (as reported)

VendorProductVersions
Linux Linux 27c79b3a9212cf4ba634c157e07d29548181a208 – before f6fbb8535e990f844371086ab2c1221f71f993d351d138c2610a236c1ed0059d034ee4c74f452b86 – before 3cb92b0ad73d3f1734e812054e698d655e9581b051d138c2610a236c1ed0059d034ee4c74f452b86 – before bf8aaf0ae01c27ae3c06aa8610caf91e5039339651d138c2610a236c1ed0059d034ee4c74f452b86 – before 1337ec94bc5a9eed250e33f5f5c89a28a6bfabdb51d138c2610a236c1ed0059d034ee4c74f452b86 – before 1d5dce5e92a70274de67a59e1e674c3267f94cd751d138c2610a236c1ed0059d034ee4c74f452b86 – before 7ac4c69c34240c6de820492c0a28a0bd1494265a51d138c2610a236c1ed0059d034ee4c74f452b86 – before db9b31aa9bc56ff0d15b78f7e827d61c4a096e402e5d24b3bf091802c5456dc8f8f6a6be4493c8ca
Linux Linux 5.12

References