CVE-2024-53181: um: vector: Do not use drvdata in release
In the Linux kernel, the following vulnerability has been resolved:
um: vector: Do not use drvdata in release
The drvdata is not available in release. Let's just use containerof() to get the vectordevice instance. Otherwise, removing a vector device will result in a crash:
RIP: 0033:vectordevicerelease+0xf/0x50 RSP: 00000000e187bc40 EFLAGS: 00010202 RAX: 0000000060028f61 RBX: 00000000600f1baf RCX: 00000000620074e0 RDX: 000000006220b9c0 RSI: 0000000060551c80 RDI: 0000000000000000 RBP: 00000000e187bc50 R08: 00000000603ad594 R09: 00000000e187bb70 R10: 000000000000135a R11: 00000000603ad422 R12: 00000000623ae028 R13: 000000006287a200 R14: 0000000062006d30 R15: 00000000623700b6 Kernel panic - not syncing: Segfault with no mm CPU: 0 UID: 0 PID: 16 Comm: kworker/0:1 Not tainted 6.12.0-rc6-g59b723cd2adb #1 Workqueue: events mcworkproc Stack: 60028f61 623ae028 e187bc80 60276fcd 6220b9c0 603f5820 623ae028 00000000 e187bcb0 603a2bcd 623ae000 62370010 Call Trace: [<60028f61>] ? vectordevicerelease+0x0/0x50 [<60276fcd>] devicerelease+0x70/0xba [<603a2bcd>] kobjectput+0xba/0xe7 [<60277265>] putdevice+0x19/0x1c [<60281266>] platformdeviceput+0x26/0x29 [<60281e5f>] platformdeviceunregister+0x2c/0x2e [<60029422>] vectorremove+0x52/0x58 [<60031316>] ? mconsolereply+0x0/0x50 [<600310c8>] mconsoleremove+0x160/0x1cc [<603b19f4>] ? strlen+0x0/0x15 [<60066611>] ? dequeueentity+0x1a9/0x206 [<600666a7>] ? setnextentity+0x39/0x63 [<6006666e>] ? setnextentity+0x0/0x63 [<60038fa6>] ? umsetsignals+0x0/0x43 [<6003070c>] mcworkproc+0x77/0x91 [<60057664>] processscheduledworks+0x1b3/0x2dd [<60055f32>] ? assignwork+0x0/0x58 [<60057f0a>] workerthread+0x1e9/0x293 [<6005406f>] ? setpfworker+0x0/0x64 [<6005d65d>] ? archlocalirqsave+0x0/0x2d [<6005d748>] ? kthreadexit+0x0/0x3a [<60057d21>] ? workerthread+0x0/0x293 [<6005dbf1>] kthread+0x126/0x12b [<600219c5>] newthreadhandler+0x85/0xb6
Other sources
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— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-53181?
CVE-2024-53181 has a high severity due to potential crashes in the Linux kernel when removing vector devices.
How do I fix CVE-2024-53181?
To fix CVE-2024-53181, update to the latest kernel versions: 6.1.123-1, 6.1.128-1, 6.12.12-1, or 6.12.15-1.
Which Linux kernel versions are affected by CVE-2024-53181?
CVE-2024-53181 affects Linux kernel versions up to and including 5.10.226-1.
What component of the Linux kernel does CVE-2024-53181 impact?
CVE-2024-53181 impacts the vector device handling component of the Linux kernel.
Is CVE-2024-53181 resolved in newer kernel versions?
Yes, CVE-2024-53181 has been resolved in the newer kernel versions starting from 6.1.123-1 and later.