CVE-2024-47690

CVE Details

Release Date:

2024-10-21

Description

In the Linux kernel, the following vulnerability has been resolved:\nf2fs: get rid of online repaire on corrupted directory\nsyzbot reports a f2fs bug as below:\nkernel BUG at fs/f2fs/inode.c:896!\nRIP: 0010:f2fs_evict_inode+0x1598/0x15c0 fs/f2fs/inode.c:896\nCall Trace:\nevict+0x532/0x950 fs/inode.c:704\ndispose_list fs/inode.c:747 [inline]\nevict_inodes+0x5f9/0x690 fs/inode.c:797\ngeneric_shutdown_super+0x9d/0x2d0 fs/super.c:627\nkill_block_super+0x44/0x90 fs/super.c:1696\nkill_f2fs_super+0x344/0x690 fs/f2fs/super.c:4898\ndeactivate_locked_super+0xc4/0x130 fs/super.c:473\ncleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373\ntask_work_run+0x24f/0x310 kernel/task_work.c:228\nptrace_notify+0x2d2/0x380 kernel/signal.c:2402\nptrace_report_syscall include/linux/ptrace.h:415 [inline]\nptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]\nsyscall_exit_work+0xc6/0x190 kernel/entry/common.c:173\nsyscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline]\n__syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline]\nsyscall_exit_to_user_mode+0x279/0x370 kernel/entry/common.c:218\ndo_syscall_64+0x100/0x230 arch/x86/entry/common.c:89\nentry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0010:f2fs_evict_inode+0x1598/0x15c0 fs/f2fs/inode.c:896\nOnline repaire on corrupted directory in f2fs_lookup() can generate\ndirty data/meta while racing w/ readonly remount, it may leave dirty\ninode after filesystem becomes readonly, however, checkpoint() will\nskips flushing dirty inode in a state of readonly mode, result in\nabove panic.\nLet's get rid of online repaire in f2fs_lookup(), and leave the work\nto fsck.f2fs.

See more information about CVE-2024-47690 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	5.5
Vector String:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality:	None
Integrity:	None
Availability:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12887	2024-12-18
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12887	2024-12-18