CVE-2023-53473
published 2025-10-01CVE-2023-53473: In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
5.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost* never fail, especially when the hash
tree feature was first introduced. However, with the addition of
support of encrypted, casefolded file names, that function can most
certainly fail today.
So make sure the callers of ext4_dirhash() properly check for
failures, and reflect the errors back up to their callers.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.37-1 (bookworm) | linux 6.1.37-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= b886ee3e778ec2ad43e276fd378ab492cf6819b7 < b2531936118deb3f479c4fa1bcd787b74b8faa6a | b2531936118deb3f479c4fa1bcd787b74b8faa6a |
| linux | linux | >= b886ee3e778ec2ad43e276fd378ab492cf6819b7 < f68876aeef96ef8b708ab10b9cb47ce0a5adb424 | f68876aeef96ef8b708ab10b9cb47ce0a5adb424 |
| linux | linux | >= b886ee3e778ec2ad43e276fd378ab492cf6819b7 < 70d579aefa652a06af97e013e3fbbabbe5a43553 | 70d579aefa652a06af97e013e3fbbabbe5a43553 |
| linux | linux | >= b886ee3e778ec2ad43e276fd378ab492cf6819b7 < c1fae027da61fe8e7eb99f7244297e81bc0f1e43 | c1fae027da61fe8e7eb99f7244297e81bc0f1e43 |
| linux | linux | >= b886ee3e778ec2ad43e276fd378ab492cf6819b7 < 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786 | 4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.37-1 | 6.1.37-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 5.16 < 6.1.29 | 6.1.29 |
| linux | linux_kernel | >= 5.2 < 5.15.112 | 5.15.112 |
| linux | linux_kernel | >= 6.2 < 6.2.16 | 6.2.16 |
| linux | linux_kernel | >= 6.3 < 6.3.3 | 6.3.3 |
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
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Red Hat
kernel: ext4: improve error handling from ext4_dirhash()
vendor_redhat·2025-10-01·CVSS 7.8
CVE-2023-53473 [HIGH] CWE-252 kernel: ext4: improve error handling from ext4_dirhash()
kernel: ext4: improve error handling from ext4_dirhash()
In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost* never fail, especially when the hash
tree feature was first introduced. However, with the addition of
support of encrypted, casefolded file names, that function can most
certainly fail today.
So make sure the callers of ext4_dirhash() properly check for
failures, and reflect the errors back up to their callers.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel (Red H
Debian
CVE-2023-53473: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: impro...
vendor_debian·2023·CVSS 7.8
CVE-2023-53473 [HIGH] CVE-2023-53473: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: impro...
In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today. So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.
Scope: local
bookworm: resolved (fixed in 6.1.37-1)
bullseye: open
forky: resolved (fixed in 6.3.7-1)
sid: resolved (fixed in 6.3.7-1)
trixie: resolved (fixed in 6.3.7-1)
OSV
CVE-2023-53473: In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost*
osv·2025-10-01·CVSS 7.8
CVE-2023-53473 [HIGH] CVE-2023-53473: In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost*
In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today. So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.
GHSA
GHSA-96w3-wxxm-9x2q: In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost
ghsa_unreviewed·2025-10-01
CVE-2023-53473 [HIGH] GHSA-96w3-wxxm-9x2q: In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost
In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost* never fail, especially when the hash
tree feature was first introduced. However, with the addition of
support of encrypted, casefolded file names, that function can most
certainly fail today.
So make sure the callers of ext4_dirhash() properly check for
failures, and reflect the errors back up to their callers.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6ahttps://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424
2025-10-01
Published