CVE-2024-27070— f2fs: fix to avoid use-after-free issue in f2fs_filemap_fault
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I. Basic Information for CVE-2024-27070
Vulnerability Information
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Vulnerability Title
f2fs: fix to avoid use-after-free issue in f2fs_filemap_fault
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free issue in f2fs_filemap_fault syzbot reports a f2fs bug as below: BUG: KASAN: slab-use-after-free in f2fs_filemap_fault+0xd1/0x2c0 fs/f2fs/file.c:49 Read of size 8 at addr ffff88807bb22680 by task syz-executor184/5058 CPU: 0 PID: 5058 Comm: syz-executor184 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0x163/0x540 mm/kasan/report.c:488 kasan_report+0x142/0x170 mm/kasan/report.c:601 f2fs_filemap_fault+0xd1/0x2c0 fs/f2fs/file.c:49 __do_fault+0x131/0x450 mm/memory.c:4376 do_shared_fault mm/memory.c:4798 [inline] do_fault mm/memory.c:4872 [inline] do_pte_missing mm/memory.c:3745 [inline] handle_pte_fault mm/memory.c:5144 [inline] __handle_mm_fault+0x23b7/0x72b0 mm/memory.c:5285 handle_mm_fault+0x27e/0x770 mm/memory.c:5450 do_user_addr_fault arch/x86/mm/fault.c:1364 [inline] handle_page_fault arch/x86/mm/fault.c:1507 [inline] exc_page_fault+0x456/0x870 arch/x86/mm/fault.c:1563 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 The root cause is: in f2fs_filemap_fault(), vmf->vma may be not alive after filemap_fault(), so it may cause use-after-free issue when accessing vmf->vma->vm_flags in trace_f2fs_filemap_fault(). So it needs to keep vm_flags in separated temporary variable for tracepoint use.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-27070
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Same Patch Batch · Linux · 2024-05-01 · 159 CVEs total
| CVE-2024-27037 | clk: zynq: Prevent null pointer dereference caused by kmalloc failure | |
| CVE-2024-27028 | spi: spi-mt65xx: Fix NULL pointer access in interrupt handler | |
| CVE-2024-27029 | drm/amdgpu: fix mmhub client id out-of-bounds access | |
| CVE-2024-27030 | octeontx2-af: Use separate handlers for interrupts | |
| CVE-2024-27031 | NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt | |
| CVE-2024-27032 | f2fs: fix to avoid potential panic during recovery | |
| CVE-2024-27033 | f2fs: fix to remove unnecessary f2fs_bug_on() to avoid panic | |
| CVE-2024-27034 | f2fs: compress: fix to cover normal cluster write with cp_rwsem | |
| CVE-2024-27035 | f2fs: compress: fix to guarantee persisting compressed blocks by CP | |
| CVE-2024-27036 | cifs: Fix writeback data corruption | |
| CVE-2024-27043 | media: edia: dvbdev: fix a use-after-free | |
| CVE-2024-27047 | net: phy: fix phy_get_internal_delay accessing an empty array | |
| CVE-2024-27046 | nfp: flower: handle acti_netdevs allocation failure | |
| CVE-2024-27045 | drm/amd/display: Fix a potential buffer overflow in 'dp_dsc_clock_en_read()' | |
| CVE-2024-27044 | drm/amd/display: Fix potential NULL pointer dereferences in 'dcn10_set_output_transfer_fun | |
| CVE-2024-27040 | drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()' | |
| CVE-2024-27038 | clk: Fix clk_core_get NULL dereference | |
| CVE-2024-27039 | clk: hisilicon: hi3559a: Fix an erroneous devm_kfree() | |
| CVE-2023-52650 | drm/tegra: dsi: Add missing check for of_find_device_by_node | |
| CVE-2024-27041 | drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini() |
Showing top 20 of 159 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-27070
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