CVE-2026-72033
orangefs: keep the readdir entry size 64-bit in fill_from_part()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: orangefs: keep the readdir entry size 64-bit in fill_from_part() fill_from_part() computes the size of a directory entry in size_t but stores it in a __u32. An entry length near U32_MAX 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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
480e3e532e31666a18520a7964bb4095d7a16b9a < 1679780f482feeb82acb5995587d4fb1d1fe82fd 480e3e532e31666a18520a7964bb4095d7a16b9a < a72bbb43689591c9d36e3bb45c2d4e688cf92682 480e3e532e31666a18520a7964bb4095d7a16b9a < 36723b28e3293047f087f4501f1ef4ead418dd84 480e3e532e31666a18520a7964bb4095d7a16b9a < 07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9 480e3e532e31666a18520a7964bb4095d7a16b9a < fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1 480e3e532e31666a18520a7964bb4095d7a16b9a < 82fc886e244c76fadf05ef1958aaf8815478ccde 480e3e532e31666a18520a7964bb4095d7a16b9a < e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729 480e3e532e31666a18520a7964bb4095d7a16b9a < 18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc
Linux / Linux
4.12
References
git.kernel.org: https://git.kernel.org/stable/c/1679780f482feeb82acb5995587d4fb1d1fe82fd git.kernel.org: https://git.kernel.org/stable/c/a72bbb43689591c9d36e3bb45c2d4e688cf92682 git.kernel.org: https://git.kernel.org/stable/c/36723b28e3293047f087f4501f1ef4ead418dd84 git.kernel.org: https://git.kernel.org/stable/c/07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9 git.kernel.org: https://git.kernel.org/stable/c/fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1 git.kernel.org: https://git.kernel.org/stable/c/82fc886e244c76fadf05ef1958aaf8815478ccde git.kernel.org: https://git.kernel.org/stable/c/e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729 git.kernel.org: https://git.kernel.org/stable/c/18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc