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Vulnerability · Published Dec 27, 2024 · Assigned by Linux

CVE-2024-56623scsi: qla2xxx: Fix use after free on unload

High 7.8

In plain English

A high-severity use-after-free 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 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 87.3% 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: scsi: qla2xxx: Fix use after free on unload System crash is observed with stack trace warning of use after free. There are 2 signals to tell dpc_thread to terminate (UNLOADING flag and kthread_stop). On setting the UNLOADING flag when dpc_thread happens to run at the time and sees the flag, this causes dpc_thread to exit and clean up itself. When kthread_stop is called for final cleanup, this causes use after free. Remove UNLOADING signal to terminate dpc_thread. Use the kthread_stop as the main signal to exit dpc_thread. [596663.812935] kernel BUG at mm/slub.c:294! [596663.812950] invalid opcode: 0000 [#1] SMP PTI [596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G IOE --------- - - 4.18.0-240.el8.x86_64 #1 [596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012 [596663.812974] RIP: 0010:__slab_free+0x17d/0x360 ... [596663.813008] Call Trace: [596663.813022] ? __dentry_kill+0x121/0x170 [596663.813030] ? _cond_resched+0x15/0x30 [596663.813034] ? _cond_resched+0x15/0x30 [596663.813039] ? wait_for_completion+0x35/0x190 [596663.813048] ? try_to_wake_up+0x63/0x540 [596663.813055] free_task+0x5a/0x60 [596663.813061] kthread_stop+0xf3/0x100 [596663.813103] qla2x00_remove_one+0x284/0x440 [qla2xxx]

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.123-1DEBIAN-CVE-2024-56623
Debian:13linux6.12.5-1DEBIAN-CVE-2024-56623
Debian:14linux6.12.5-1DEBIAN-CVE-2024-56623
Ubuntu:22.04:LTSlinux5.15.0-135.146UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux6.8.0-58.60UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-aws5.15.0-1080.87UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-aws6.8.0-1027.29UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1027.29~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure5.15.0-1084.93UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-azure6.8.0-1027.32UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1012.12~24.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1027.32~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1084.93.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1014.15UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gcp5.15.0-1079.88UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-gcp6.8.0-1028.30UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1011.11~24.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1028.30~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gke5.15.0-1077.83UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-gke6.8.0-1023.27UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1062.70UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1010.12UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-21.21~24.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-58.60~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-ibm5.15.0-1072.75UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-ibm6.8.0-1024.24UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1024.24~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1075.81UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-kvm5.15.0-1076.81UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-135.146UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-58.60.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1074.75UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1026.29UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1007.7UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1026.29~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1026.29.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1033.33UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1021.21UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1017.17UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1026.26UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oracle5.15.0-1077.83UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-oracle6.8.0-1024.25UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1024.25~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-raspi5.15.0-1074.77UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-raspi6.8.0-1028.32UBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-riscv6.8.0-58.60.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-56623
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-56623
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1044.48UBUNTU-CVE-2024-56623

Affected products (as reported)

VendorProductVersions
Linux Linux a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before 12f04fc8580eafb0510f805749553eb6213f323ea29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before ca36d9d53745d5ec8946ef85006d4da605ea7c54a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before b3e6f25176f248762a24d25ab8cf8c5e90874f80a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before 15369e774f27ec790f207de87c0b541e3f90b22da29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before 6abf16d3c915b2feb68c1c8b25fcb71b13f98478a29b3dd7aa14facc902b40b8b5c4dccbfb2ad7d0 – before 07c903db0a2ff84b68efa1a74a4de353ea591eb0
Linux Linux 4.8

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References