CVE-2022-49347
published 2025-02-26CVE-2022-49347: In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in ext4_writepages we got issue as follows: EXT4-fs error (device loop0)…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.29%
21.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix bug_on in ext4_writepages
we got issue as follows:
EXT4-fs error (device loop0): ext4_mb_generate_buddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2708!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 2 PID: 2147 Comm: rep Not tainted 5.18.0-rc2-next-20220413+ #155
RIP: 0010:ext4_writepages+0x1977/0x1c10
RSP: 0018:ffff88811d3e7880 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811c098000
RDX: 0000000000000000 RSI: ffff88811c098000 RDI: 0000000000000002
RBP: ffff888128140f50 R08: ffffffffb1ff6387 R09: 0000000000000000
R10: 0000000000000007 R11: ffffed10250281ea R12: 0000000000000001
R13: 00000000000000a4 R14: ffff88811d3e7bb8 R15: ffff888128141028
FS: 00007f443aed9740(0000) GS:ffff8883aef00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020007200 CR3: 000000011c2a4000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_writepages+0x130/0x3a0
filemap_fdatawrite_wbc+0x83/0xa0
filemap_flush+0xab/0xe0
ext4_alloc_da_blocks+0x51/0x120
__ext4_ioctl+0x1534/0x3210
__x64_sys_ioctl+0x12c/0x170
do_syscall_64+0x3b/0x90
It may happen as follows:
1. write inline_data inode
vfs_write
new_sync_write
ext4_file_write_iter
ext4_buffered_write_iter
generic_perform_write
ext4_da_write_begin
ext4_da_write_inline_data_begin -> If inline data size too
small will allocate block to write, then mapping will has
dirty page
ext4_da_convert_inline_data_to_extent ->clear EXT4_STATE_MAY_INLINE_DATA
2. fallocate
do_vfs_ioctl
ioctl_preallocate
vfs_fallocate
ext4_fallocate
ext4_convert_inline_data
ext4_convert_inline_data_nolock
ext4_map_blocks -> fail will goto restore data
ext4_restore_inline_data
ext4_create_inline_data
ext4_w
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.5-1 (bookworm) | linux 5.18.5-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 19918ec7717d87d5ab825884a46b26b21375d7ce | 19918ec7717d87d5ab825884a46b26b21375d7ce |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < b2b78f5bf2d453dda3903955efee059260787a42 | b2b78f5bf2d453dda3903955efee059260787a42 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < de1732b5c1693ad489c5d254f124f67cb775f37d | de1732b5c1693ad489c5d254f124f67cb775f37d |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 73fd5b19285197078ee8a2e651d75d5b094a4de9 | 73fd5b19285197078ee8a2e651d75d5b094a4de9 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 1b061af037646c9cdb0afd8a8d2f1e1c06285866 | 1b061af037646c9cdb0afd8a8d2f1e1c06285866 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 18a759f7f99f0b65a08ff5b7e745fc405a42bde4 | 18a759f7f99f0b65a08ff5b7e745fc405a42bde4 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 1cde35417edc0370fb0179a4e38b78a15350a8d0 | 1cde35417edc0370fb0179a4e38b78a15350a8d0 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < 013f12bdedb96816aaa27ee04349f4433d361f52 | 013f12bdedb96816aaa27ee04349f4433d361f52 |
| linux | linux | >= 3c47d54170b6a678875566b1b8d6dcf57904e49b < ef09ed5d37b84d18562b30cf7253e57062d0db05 | ef09ed5d37b84d18562b30cf7253e57062d0db05 |
| linux | linux_kernel | < 4.9.318 | 4.9.318 |
| linux | linux_kernel | >= 0 < 5.10.127-1 | 5.10.127-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 0 < 5.18.5-1 | 5.18.5-1 |
| linux | linux_kernel | >= 4.10 < 4.14.283 | 4.14.283 |
| linux | linux_kernel | >= 4.15 < 4.19.247 | 4.19.247 |
| linux | linux_kernel | >= 4.20 < 5.4.198 | 5.4.198 |
| linux | linux_kernel | >= 5.11 < 5.15.46 | 5.15.46 |
| linux | linux_kernel | >= 5.16 < 5.17.14 | 5.17.14 |
| linux | linux_kernel | >= 5.18 < 5.18.3 | 5.18.3 |
| linux | linux_kernel | >= 5.5 < 5.10.121 | 5.10.121 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-pqc9-xfp2-368x: In the Linux kernel, the following vulnerability has been resolved:
ext4: fix bug_on in ext4_writepages
we got issue as follows:
EXT4-fs error (devi
ghsa_unreviewed·2025-09-22
CVE-2022-49347 [MEDIUM] CWE-617 GHSA-pqc9-xfp2-368x: In the Linux kernel, the following vulnerability has been resolved:
ext4: fix bug_on in ext4_writepages
we got issue as follows:
EXT4-fs error (devi
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix bug_on in ext4_writepages
we got issue as follows:
EXT4-fs error (device loop0): ext4_mb_generate_buddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2708!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 2 PID: 2147 Comm: rep Not tainted 5.18.0-rc2-next-20220413+ #155
RIP: 0010:ext4_writepages+0x1977/0x1c10
RSP: 0018:ffff88811d3e7880 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811c098000
RDX: 0000000000000000 RSI: ffff88811c098000 RDI: 0000000000000002
RBP: ffff888128140f50 R08: ffffffffb1ff6387 R09: 0000000000000000
R10: 0000000000000007 R11: ffffed10250281ea R12: 0000000000000
OSV
CVE-2022-49347: In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in ext4_writepages we got issue as follows: EXT4-fs error (device
osv·2025-02-26·CVSS 5.5
CVE-2022-49347 [MEDIUM] CVE-2022-49347: In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in ext4_writepages we got issue as follows: EXT4-fs error (device
In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in ext4_writepages we got issue as follows: EXT4-fs error (device loop0): ext4_mb_generate_buddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2708! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 2 PID: 2147 Comm: rep Not tainted 5.18.0-rc2-next-20220413+ #155 RIP: 0010:ext4_writepages+0x1977/0x1c10 RSP: 0018:ffff88811d3e7880 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811c098000 RDX: 0000000000000000 RSI: ffff88811c098000 RDI: 0000000000000002 RBP: ffff888128140f50 R08: ffffffffb1ff6387 R09: 0000000000000000 R10: 0000000000000007 R11: ffffed10250281ea R12: 000000000000000
Red Hat
kernel: ext4: fix bug_on in ext4_writepages
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2022-49347 [MEDIUM] kernel: ext4: fix bug_on in ext4_writepages
kernel: ext4: fix bug_on in ext4_writepages
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix bug_on in ext4_writepages
we got issue as follows:
EXT4-fs error (device loop0): ext4_mb_generate_buddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2708!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 2 PID: 2147 Comm: rep Not tainted 5.18.0-rc2-next-20220413+ #155
RIP: 0010:ext4_writepages+0x1977/0x1c10
RSP: 0018:ffff88811d3e7880 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811c098000
RDX: 0000000000000000 RSI: ffff88811c098000 RDI: 0000000000000002
RBP: ffff888128140f50 R08: ffffffffb1ff6387 R09: 0000000000000000
R10: 00000000000000
Debian
CVE-2022-49347: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: fix b...
vendor_debian·2022·CVSS 5.5
CVE-2022-49347 [MEDIUM] CVE-2022-49347: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: fix b...
In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on in ext4_writepages we got issue as follows: EXT4-fs error (device loop0): ext4_mb_generate_buddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2708! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 2 PID: 2147 Comm: rep Not tainted 5.18.0-rc2-next-20220413+ #155 RIP: 0010:ext4_writepages+0x1977/0x1c10 RSP: 0018:ffff88811d3e7880 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88811c098000 RDX: 0000000000000000 RSI: ffff88811c098000 RDI: 0000000000000002 RBP: ffff888128140f50 R08: ffffffffb1ff6387 R09: 0000000000000000 R10: 0000000000000007 R11: ffffed10250281ea R12: 000000000000000
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/013f12bdedb96816aaa27ee04349f4433d361f52https://git.kernel.org/stable/c/18a759f7f99f0b65a08ff5b7e745fc405a42bde4https://git.kernel.org/stable/c/19918ec7717d87d5ab825884a46b26b21375d7cehttps://git.kernel.org/stable/c/1b061af037646c9cdb0afd8a8d2f1e1c06285866https://git.kernel.org/stable/c/1cde35417edc0370fb0179a4e38b78a15350a8d0https://git.kernel.org/stable/c/73fd5b19285197078ee8a2e651d75d5b094a4de9https://git.kernel.org/stable/c/b2b78f5bf2d453dda3903955efee059260787a42https://git.kernel.org/stable/c/de1732b5c1693ad489c5d254f124f67cb775f37dhttps://git.kernel.org/stable/c/ef09ed5d37b84d18562b30cf7253e57062d0db05
2025-02-26
Published