CVE-2026-93140

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Source
https://cve.org/CVERecord?id=CVE-2026-93140
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93140.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93140
Downstream
Published
2026-09-17T16:11:40Z
Modified
2026-09-19T03:47:31Z
Summary
udf: Mark LVID buffer as uptodate before marking it dirty
Details

In the Linux kernel, the following vulnerability has been resolved:

udf: Mark LVID buffer as uptodate before marking it dirty

When an I/O error occurs while writing the Logical Volume Integrity Descriptor (LVID) buffer to the block device, the block layer's completion handler (end_buffer_write_sync()) clears the BH_Uptodate flag on the buffer. However, the buffer still contains valid LVID data in memory. If the filesystem is subsequently remounted read-write or synced, udf_open_lvid() or udf_sync_fs() will modify the LVID buffer and call mark_buffer_dirty(). This triggers a spurious WARN_ON_ONCE(!buffer_uptodate(bh)) warning in mark_buffer_dirty() because the buffer is not marked uptodate, even though its in-memory contents are valid and are about to be overwritten.

To prevent this spurious warning, unconditionally set the BH_Uptodate flag before calling mark_buffer_dirty() in udf_open_lvid() and udf_sync_fs(). This acknowledges that the in-memory buffer is valid and matches the workaround previously applied to udf_close_lvid() in commit 853a0c25baf9 ("udf: Mark LVID buffer as uptodate before marking it dirty"). Extending this workaround ensures consistent behavior across all LVID updates.

Buffer I/O error on dev loop0, logical block 128, lost sync page write ------------[ cut here ]------------ !buffer_uptodate(bh) WARNING: fs/buffer.c:1087 at mark_buffer_dirty+0x299/0x410 fs/buffer.c:1087 ... Call Trace: udf_open_lvid+0x369/0x5b0 fs/udf/super.c:2078 udf_reconfigure+0x336/0x540 fs/udf/super.c:679 reconfigure_super+0x232/0x8f0 fs/super.c:1080 vfs_cmd_reconfigure fs/fsopen.c:268 [inline] vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:297 __do_sys_fsconfig fs/fsopen.c:463 [inline] __se_sys_fsconfig+0x6b9/0x810 fs/fsopen.c:350 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93140.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
853a0c25baf96b028de1654bea1e0c8857eadf3d
Fixed
e6461ef34f91ad7dbffdf912b3d661a7dd892931
Fixed
359cea636f4a74a96c01a8050f155e12840c079a
Fixed
a4c4e38b356ad4c1f90478124922917489137c08
Fixed
8034ddf4751d9143c5ef7eebe3d4f33218fdd378
Fixed
ee477e5204f764444e60699280abf5936c2a6ae6
Fixed
11afe1912140f79d5af3091a54b181ef72fce1a5
Fixed
c4058355d27488a3cd31c60c032335f77c4fdcfc
Fixed
fb0601134c7e51728bd098abc6909315de1e5d86
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
c7da4ed95a78e38fdaffb06eaf1a3f3318b1add6
Last Affected
c005218328597211008a4d33a91e2952798e3556
Last Affected
1357ed0b4b9db30846377febb40a847d6103c991
Last Affected
43f4a516b2f5492bc597f3753b693ad8adc62748
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2.6.27.62
Fixed
2.6.28
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2.6.32.57
Fixed
2.6.33
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3.0.21
Fixed
3.1
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3.2.6
Fixed
3.3

Affected versions

v2.*
v2.6.12-rc2
v2.6.12-rc3
v2.6.12-rc4
v2.6.13
v2.6.13-rc1
v2.6.13-rc2
v2.6.13-rc3
v2.6.13-rc4
v2.6.13-rc5
v2.6.13-rc6
v2.6.13-rc7
v2.6.14-rc1
v2.6.14-rc2
v2.6.14-rc3
v2.6.15-rc1
v2.6.15-rc2
v2.6.15-rc4
v2.6.15-rc5
v2.6.15-rc7
v2.6.16
v2.6.16-rc1
v2.6.16-rc2
v2.6.16-rc3
v2.6.16-rc4
v2.6.16-rc5
v2.6.16-rc6
v2.6.17
v2.6.17-rc1
v2.6.17-rc2
v2.6.17-rc3
v2.6.17-rc4
v2.6.17-rc5
v2.6.17-rc6
v2.6.18
v2.6.18-rc1
v2.6.18-rc2
v2.6.18-rc3
v2.6.18-rc5
v2.6.18-rc6
v2.6.19-rc1
v2.6.19-rc2
v2.6.20-rc1
v2.6.20-rc2
v2.6.20-rc3
v2.6.20-rc4
v2.6.20-rc5
v2.6.20-rc6
v2.6.20-rc7
v2.6.21
v2.6.21-rc1
v2.6.21-rc2
v2.6.21-rc3
v2.6.21-rc4
v2.6.21-rc5
v2.6.21-rc6
v2.6.21-rc7
v2.6.22
v2.6.22-rc1
v2.6.22-rc2
v2.6.22-rc3
v2.6.22-rc4
v2.6.22-rc5
v2.6.22-rc6
v2.6.22-rc7
v2.6.23
v2.6.23-rc1
v2.6.23-rc2
v2.6.23-rc3
v2.6.23-rc4
v2.6.23-rc5
v2.6.23-rc6
v2.6.23-rc7
v2.6.23-rc8
v2.6.23-rc9
v2.6.24
v2.6.24-rc1
v2.6.24-rc2
v2.6.24-rc3
v2.6.24-rc4
v2.6.24-rc5
v2.6.24-rc6
v2.6.24-rc7
v2.6.24-rc8
v2.6.25
v2.6.25-rc1
v2.6.25-rc2
v2.6.25-rc3
v2.6.25-rc4
v2.6.25-rc5
v2.6.25-rc6
v2.6.25-rc7
v2.6.25-rc8
v2.6.25-rc9
v2.6.26
v2.6.26-rc1
v2.6.26-rc2
v2.6.26-rc3
v2.6.26-rc4
v2.6.26-rc5
v2.6.26-rc6
v2.6.26-rc7
v2.6.26-rc8
v2.6.26-rc9
v2.6.27
v2.6.27-rc1
v2.6.27-rc2
v2.6.27-rc3
v2.6.27-rc4
v2.6.27-rc5
v2.6.27-rc6
v2.6.27-rc7
v2.6.27-rc8
v2.6.27-rc9
v2.6.27.1
v2.6.27.10
v2.6.27.11
v2.6.27.12
v2.6.27.13
v2.6.27.14
v2.6.27.15
v2.6.27.16
v2.6.27.17
v2.6.27.18
v2.6.27.19
v2.6.27.2
v2.6.27.20
v2.6.27.21
v2.6.27.22
v2.6.27.23
v2.6.27.24
v2.6.27.25
v2.6.27.26
v2.6.27.27
v2.6.27.28
v2.6.27.29
v2.6.27.3
v2.6.27.30
v2.6.27.31
v2.6.27.32
v2.6.27.33
v2.6.27.34
v2.6.27.35
v2.6.27.36
v2.6.27.37
v2.6.27.38
v2.6.27.39
v2.6.27.4
v2.6.27.40
v2.6.27.41
v2.6.27.42
v2.6.27.43
v2.6.27.44
v2.6.27.45
v2.6.27.46
v2.6.27.47
v2.6.27.48
v2.6.27.49
v2.6.27.5
v2.6.27.50
v2.6.27.51
v2.6.27.52
v2.6.27.53
v2.6.27.54
v2.6.27.55
v2.6.27.56
v2.6.27.57
v2.6.27.58
v2.6.27.59
v2.6.27.6
v2.6.27.60
v2.6.27.61
v2.6.27.7
v2.6.27.8
v2.6.27.9
v2.6.28
v2.6.28-rc1
v2.6.28-rc2
v2.6.28-rc3
v2.6.28-rc4
v2.6.28-rc5
v2.6.28-rc6
v2.6.28-rc7
v2.6.28-rc8
v2.6.28-rc9
v2.6.29
v2.6.29-rc1
v2.6.29-rc2
v2.6.29-rc3
v2.6.29-rc4
v2.6.29-rc5
v2.6.29-rc6
v2.6.29-rc7
v2.6.29-rc8
v2.6.30
v2.6.30-rc1
v2.6.30-rc2
v2.6.30-rc3
v2.6.30-rc4
v2.6.30-rc5
v2.6.30-rc6
v2.6.30-rc7
v2.6.30-rc8
v2.6.31
v2.6.31-rc1
v2.6.31-rc2
v2.6.31-rc3
v2.6.31-rc4
v2.6.31-rc5
v2.6.31-rc6
v2.6.31-rc7
v2.6.31-rc8
v2.6.31-rc9
v2.6.32
v2.6.32-rc1
v2.6.32-rc2
v2.6.32-rc3
v2.6.32-rc4
v2.6.32-rc5
v2.6.32-rc6
v2.6.32-rc7
v2.6.32-rc8
v2.6.32.1
v2.6.32.10
v2.6.32.11
v2.6.32.12
v2.6.32.13
v2.6.32.14
v2.6.32.15
v2.6.32.16
v2.6.32.17
v2.6.32.18
v2.6.32.19
v2.6.32.2
v2.6.32.20
v2.6.32.21
v2.6.32.22
v2.6.32.23
v2.6.32.24
v2.6.32.25
v2.6.32.26
v2.6.32.27
v2.6.32.28
v2.6.32.29
v2.6.32.3
v2.6.32.30
v2.6.32.31
v2.6.32.32
v2.6.32.33
v2.6.32.34
v2.6.32.35
v2.6.32.36
v2.6.32.37
v2.6.32.38
v2.6.32.39
v2.6.32.4
v2.6.32.40
v2.6.32.41
v2.6.32.42
v2.6.32.43
v2.6.32.44
v2.6.32.45
v2.6.32.46
v2.6.32.47
v2.6.32.48
v2.6.32.49
v2.6.32.5
v2.6.32.50
v2.6.32.51
v2.6.32.52
v2.6.32.53
v2.6.32.54
v2.6.32.55
v2.6.32.56
v2.6.32.6
v2.6.32.7
v2.6.32.8
v2.6.32.9
v2.6.33
v2.6.33-rc1
v2.6.33-rc2
v2.6.33-rc3
v2.6.33-rc4
v2.6.33-rc5
v2.6.33-rc6
v2.6.33-rc7
v2.6.33-rc8
v2.6.34
v2.6.34-rc1
v2.6.34-rc2
v2.6.34-rc3
v2.6.34-rc4
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v2.6.35
v2.6.35-rc1
v2.6.35-rc2
v2.6.35-rc3
v2.6.35-rc4
v2.6.35-rc5
v2.6.35-rc6
v2.6.36
v2.6.36-rc1
v2.6.36-rc2
v2.6.36-rc3
v2.6.36-rc4
v2.6.36-rc5
v2.6.36-rc6
v2.6.36-rc7
v2.6.36-rc8
v2.6.37
v2.6.37-rc1
v2.6.37-rc2
v2.6.37-rc3
v2.6.37-rc4
v2.6.37-rc5
v2.6.37-rc6
v2.6.37-rc7
v2.6.37-rc8
v2.6.38
v2.6.38-rc1
v2.6.38-rc2
v2.6.38-rc3
v2.6.38-rc4
v2.6.38-rc5
v2.6.38-rc6
v2.6.38-rc7
v2.6.38-rc8
v2.6.39
v2.6.39-rc1
v2.6.39-rc2
v2.6.39-rc3
v2.6.39-rc4
v2.6.39-rc5
v2.6.39-rc6
v2.6.39-rc7
v3.*
v3.0
v3.0-rc1
v3.0-rc2
v3.0-rc3
v3.0-rc4
v3.0-rc5
v3.0-rc6
v3.0-rc7
v3.0.1
v3.0.10
v3.0.11
v3.0.12
v3.0.13
v3.0.14
v3.0.15
v3.0.16
v3.0.17
v3.0.18
v3.0.19
v3.0.2
v3.0.20
v3.0.3
v3.0.4
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9
v3.1
v3.1-rc1
v3.1-rc10
v3.1-rc2
v3.1-rc3
v3.1-rc4
v3.1-rc5
v3.1-rc6
v3.1-rc7
v3.1-rc8
v3.1-rc9
v3.2
v3.2-rc1
v3.2-rc2
v3.2-rc3
v3.2-rc4
v3.2-rc5
v3.2-rc6
v3.2-rc7
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93140.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.3.0
Fixed
5.10.270
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.221
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.188
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.157
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.52
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93140.json"