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CVE

CVE-2026-72033

orangefs: keep the readdir entry size 64-bit in fill_from_part()
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CVE

CVE-2026-72033

orangefs: keep the readdir entry size 64-bit in fill_from_part()

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

orangefs: keep the readdir entry size 64-bit in fillfrompart()

fillfrompart() computes the size of a directory entry in size_t but

stores it in a _u32. An entry length near U32MAX wraps it to a small

value, bypasses the bounds check, and is then used to index the entry,

reading far past the directory part -- an out-of-bounds read that oopses

the kernel.

Compute the size as a u64 so it cannot truncate; the bounds check then

rejects the entry. The trailer is supplied by the userspace client.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9, https://git.kernel.org/stable/c/1679780f482feeb82acb5995587d4fb1d1fe82fd, https://git.kernel.org/stable/c/18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc, https://git.kernel.org/stable/c/36723b28e3293047f087f4501f1ef4ead418dd84, https://git.kernel.org/stable/c/82fc886e244c76fadf05ef1958aaf8815478ccde, https://git.kernel.org/stable/c/a72bbb43689591c9d36e3bb45c2d4e688cf92682, https://git.kernel.org/stable/c/e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729, https://git.kernel.org/stable/c/fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72033.json, https://nvd.nist.gov/vuln/detail/CVE-2026-72033, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00739%
EPSS Percentile
0.51896%
Introduced Version
480e3e532e31666a18520a7964bb4095d7a16b9a,4.12.0,5.11.0,5.16.0,6.2.0,6.7.0,6.13.0,6.19.0,0
Fix Available
18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc,5.10.261,5.15.212,6.1.178,6.6.145,6.12.97,6.18.40,7.1.5,6.1.180-1,5.10.262-1,6.12.100-1

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