CVE-2024-53183 in Linux
요약
\~에 의해 VulDB • 2026. 06. 28.
리눅스 커널에서 다음 취약점이 해결되었습니다:
um: net: release 함수에서 drvdata를 사용하지 않음
release 시점에는 drvdata에 접근할 수 없습니다. uml_net 인스턴스를 얻기 위해 container_of()만 사용해야 합니다. 그렇지 않으면 네트워크 장치를 제거하는 과정에서 크래시가 발생합니다:
RIP: 0033:net_device_release+0x10/0x6f RSP: 00000000e20c7c40 EFLAGS: 00010206 RAX: 000000006002e4e7 RBX: 00000000600f1baf RCX: 00000000624074e0 RDX: 0000000062778000 RSI: 0000000060551c80 RDI: 00000000627af028 RBP: 00000000e20c7c50 R08: 00000000603ad594 R09: 00000000e20c7b70 R10: 000000000000135a R11: 00000000603ad422 R12: 0000000000000000 R13: 0000000062c7af00 R14: 0000000062406d60 R15: 00000000627700b6 Kernel panic - not syncing: Segfault with no mm CPU: 0 UID: 0 PID: 29 Comm: kworker/0:2 Not tainted 6.12.0-rc6-g59b723cd2adb #1 Workqueue: events mc_work_proc Stack: 627af028 62c7af00 e20c7c80 60276fcd 62778000 603f5820 627af028 00000000 e20c7cb0 603a2bcd 627af000 62770010 Call Trace: [] device_release+0x70/0xba
[] kobject_put+0xba/0xe7
[] put_device+0x19/0x1c
[] platform_device_put+0x26/0x29
[] platform_device_unregister+0x2c/0x2e
[] net_remove+0x63/0x69
[] ? mconsole_reply+0x0/0x50
[] mconsole_remove+0x160/0x1cc
[] ? __remove_hrtimer+0x38/0x74
[] ? hrtimer_try_to_cancel+0
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