# CVE-2024-39467: linux: In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on i_xattr_nid in s... CVE-2024-39467 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2024-39467, released June 25, 2024. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2024-39467 - Priority: High - CVSS: 7.1 (high) - EPSS: 0.0024 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jun 25, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode() syzbot reports a kernel bug as below: F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 ================================================================== BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline] BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076 CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] current_nat_addr fs/f2fs/node.h:213 [inline] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The root cause is we missed to do sanity check on i_xattr_nid during f2fs_iget(), so that in fiemap() path, current_nat_addr() will access nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering kasan bug report, fix it. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | kernel-uek ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.334.6.el8 | [ELSA-2024-12584](https://patchblox.com/security/data/fix/linux/elsa-2024-12584.md) | Aug 12, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.334.6.el8 | [ELSA-2024-12584](https://patchblox.com/security/data/fix/linux/elsa-2024-12584.md) | Aug 12, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.94-1 | [DEBIAN-CVE-2024-39467](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39467.md) | Jun 25, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.9.7-1 | [DEBIAN-CVE-2024-39467](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39467.md) | Jun 25, 2024 | | Linux | linux Debian 14 | 6.9.7-1 | [DEBIAN-CVE-2024-39467](https://patchblox.com/security/data/fix/linux/debian-cve-2024-39467.md) | Jun 25, 2024 | | Linux | perf ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | | Linux | python-perf ol 8 | 0:5.4.17-2136.334.6.el7uek | [ELSA-2024-12581](https://patchblox.com/security/data/fix/linux/elsa-2024-12581.md) | Aug 12, 2024 | --- Data as of 2026-11-08T19:12:23Z UTC. 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