CVE-2022-49170
published 2025-02-26CVE-2022-49170: In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg->alloc_type As Wenqing Liu reported in bugzilla…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.27%
18.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on curseg->alloc_type
As Wenqing Liu reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=215657
- Overview
UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image
- Reproduce
tested on kernel 5.17-rc4, 5.17-rc6
1. mkdir test_crash
2. cd test_crash
3. unzip tmp2.zip
4. mkdir mnt
5. ./single_test.sh f2fs 2
- Kernel dump
[ 46.434454] loop0: detected capacity change from 0 to 131072
[ 46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9
[ 46.738319] ================================================================================
[ 46.738412] UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2
[ 46.738475] index 231 is out of range for type 'unsigned int [2]'
[ 46.738539] CPU: 2 PID: 939 Comm: umount Not tainted 5.17.0-rc6 #1
[ 46.738547] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
[ 46.738551] Call Trace:
[ 46.738556]
[ 46.738563] dump_stack_lvl+0x47/0x5c
[ 46.738581] ubsan_epilogue+0x5/0x50
[ 46.738592] __ubsan_handle_out_of_bounds+0x68/0x80
[ 46.738604] f2fs_allocate_data_block+0xdff/0xe60 [f2fs]
[ 46.738819] do_write_page+0xef/0x210 [f2fs]
[ 46.738934] f2fs_do_write_node_page+0x3f/0x80 [f2fs]
[ 46.739038] __write_node_page+0x2b7/0x920 [f2fs]
[ 46.739162] f2fs_sync_node_pages+0x943/0xb00 [f2fs]
[ 46.739293] f2fs_write_checkpoint+0x7bb/0x1030 [f2fs]
[ 46.739405] kill_f2fs_super+0x125/0x150 [f2fs]
[ 46.739507] deactivate_locked_super+0x60/0xc0
[ 46.739517] deactivate_super+0x70/0xb0
[ 46.739524] cleanup_mnt+0x11a/0x200
[ 46.739532] __cleanup_mnt+0x16/0x20
[ 46.739538] task_work_run+0x67/0xa0
[ 46.739547] exit_to_user_mode_prepare+0x18c/0x1a0
[ 46.739559] syscall_exit_to_user_mode+0x26/0x40
[ 46.739568] do_syscall_64+0x46/0xb0
[ 46.739584] entry_SYSCALL_64_after_hwframe+0x44/0xae
The root cause is we missed to do sanity check on curseg->allo
Affected
36 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 351df4b201157351c7d26bf12c3eeb9dbce98854 < 498b7088db71f9707359448cd6800bbb1882f4c3 | 498b7088db71f9707359448cd6800bbb1882f4c3 |
| linux | linux | >= 351df4b201157351c7d26bf12c3eeb9dbce98854 < f68caedf264a95c0b02dfd0d9f92ac2637d5848a | f68caedf264a95c0b02dfd0d9f92ac2637d5848a |
| linux | linux | >= 351df4b201157351c7d26bf12c3eeb9dbce98854 < 0748a0f7dcb9d9dddc80302d73ebcecef6782ef0 | 0748a0f7dcb9d9dddc80302d73ebcecef6782ef0 |
| linux | linux | >= 351df4b201157351c7d26bf12c3eeb9dbce98854 < c12765e3f129b144421c80d3383df885f85ee290 | c12765e3f129b144421c80d3383df885f85ee290 |
| linux | linux | >= 351df4b201157351c7d26bf12c3eeb9dbce98854 < f41ee8b91c00770d718be2ff4852a80017ae9ab3 | f41ee8b91c00770d718be2ff4852a80017ae9ab3 |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 3.8 < 5.10.110 | 5.10.110 |
| linux | linux_kernel | >= 5.11 < 5.15.33 | 5.15.33 |
| linux | linux_kernel | >= 5.16 < 5.16.19 | 5.16.19 |
| linux | linux_kernel | >= 5.17 < 5.17.2 | 5.17.2 |
| ubuntu | linux | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-5.4 | — | — |
| ubuntu | linux-aws-fips | — | — |
| ubuntu | linux-azure | — | — |
| ubuntu | linux-azure-5.4 | — | — |
| ubuntu | linux-azure-fips | — | — |
| ubuntu | linux-fips | — | — |
| ubuntu | linux-gcp | — | — |
| ubuntu | linux-gcp-5.4 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu4.7MEDIUM
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GHSA
GHSA-q4pp-63r6-wx5q: In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on curseg->alloc_type
As Wenqing Liu reported in bu
ghsa_unreviewed·2025-09-23
CVE-2022-49170 [HIGH] CWE-129 GHSA-q4pp-63r6-wx5q: In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on curseg->alloc_type
As Wenqing Liu reported in bu
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on curseg->alloc_type
As Wenqing Liu reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=215657
- Overview
UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image
- Reproduce
tested on kernel 5.17-rc4, 5.17-rc6
1. mkdir test_crash
2. cd test_crash
3. unzip tmp2.zip
4. mkdir mnt
5. ./single_test.sh f2fs 2
- Kernel dump
[ 46.434454] loop0: detected capacity change from 0 to 131072
[ 46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9
[ 46.738319] ================================================================================
[ 46.738412] UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2
[ 46.738475]
OSV
CVE-2022-49170: In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg->alloc_type As Wenqing Liu reported in bugz
osv·2025-02-26·CVSS 7.8
CVE-2022-49170 [HIGH] CVE-2022-49170: In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg->alloc_type As Wenqing Liu reported in bugz
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg->alloc_type As Wenqing Liu reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215657 - Overview UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image - Reproduce tested on kernel 5.17-rc4, 5.17-rc6 1. mkdir test_crash 2. cd test_crash 3. unzip tmp2.zip 4. mkdir mnt 5. ./single_test.sh f2fs 2 - Kernel dump [ 46.434454] loop0: detected capacity change from 0 to 131072 [ 46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9 [ 46.738319] ================================================================================ [ 46.738412] UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 [ 46.738475] index 2
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-10-13·CVSS 4.7
CVE-2022-49149 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Ethernet bonding driver;
- Network drivers;
- F2FS file system;
- Network file system (NFS) server daemon;
- Tracing infrastructure;
- io_uring subsystem;
- Networking core;
- IPv6 networking;
- IUCV driver;
- Netfilter;
- RxRPC session sockets;
(CVE-2022-49149, CVE-2022-49170, CVE-2022-49182, CVE-2022-49201,
CVE-2024-53187, CVE-2024-53210, CVE-2024-56763, CVE-2025-38724,
CVE-2026-43456, CVE-2026-52910, CVE-2026-53131, CVE-2026-53221)
Instructions: After a standard system update you need to reboot your comput
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-10-13·CVSS 4.7
CVE-2022-49201 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Ethernet bonding driver;
- Network drivers;
- F2FS file system;
- Tracing infrastructure;
- io_uring subsystem;
- Networking core;
- IUCV driver;
- RxRPC session sockets;
(CVE-2022-49149, CVE-2022-49170, CVE-2022-49182, CVE-2022-49201,
CVE-2024-53187, CVE-2024-53210, CVE-2024-56763, CVE-2026-43456,
CVE-2026-52910)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new
Red Hat
kernel: f2fs: fix to do sanity check on curseg->alloc_type
vendor_redhat·2025-02-26·CVSS 7.8
CVE-2022-49170 [HIGH] kernel: f2fs: fix to do sanity check on curseg->alloc_type
kernel: f2fs: fix to do sanity check on curseg->alloc_type
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to do sanity check on curseg->alloc_type
As Wenqing Liu reported in bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=215657
- Overview
UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image
- Reproduce
tested on kernel 5.17-rc4, 5.17-rc6
1. mkdir test_crash
2. cd test_crash
3. unzip tmp2.zip
4. mkdir mnt
5. ./single_test.sh f2fs 2
- Kernel dump
[ 46.434454] loop0: detected capacity change from 0 to 131072
[ 46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9
[ 46.738319] ================================================================================
[ 46.738412] UBSAN: array-index-ou
Debian
CVE-2022-49170: linux - In the Linux kernel, the following vulnerability has been resolved: f2fs: fix t...
vendor_debian·2022·CVSS 7.8
CVE-2022-49170 [HIGH] CVE-2022-49170: linux - In the Linux kernel, the following vulnerability has been resolved: f2fs: fix t...
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg->alloc_type As Wenqing Liu reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215657 - Overview UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image - Reproduce tested on kernel 5.17-rc4, 5.17-rc6 1. mkdir test_crash 2. cd test_crash 3. unzip tmp2.zip 4. mkdir mnt 5. ./single_test.sh f2fs 2 - Kernel dump [ 46.434454] loop0: detected capacity change from 0 to 131072 [ 46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9 [ 46.738319] ================================================================================ [ 46.738412] UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 [ 46.738475] index 2
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/0748a0f7dcb9d9dddc80302d73ebcecef6782ef0https://git.kernel.org/stable/c/498b7088db71f9707359448cd6800bbb1882f4c3https://git.kernel.org/stable/c/c12765e3f129b144421c80d3383df885f85ee290https://git.kernel.org/stable/c/f41ee8b91c00770d718be2ff4852a80017ae9ab3https://git.kernel.org/stable/c/f68caedf264a95c0b02dfd0d9f92ac2637d5848a
2025-02-26
Published