by Kastro CVE-2026-72033
Linux Linux — orangefs: keep the readdir entry size 64-bit in fill_from_part()
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < 1679780f482feeb82acb5995587d4fb1d1fe82fd1679780f482feeb82acb5995587d4fb1d1fe82fdCNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < a72bbb43689591c9d36e3bb45c2d4e688cf92682a72bbb43689591c9d36e3bb45c2d4e688cf92682CNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < 36723b28e3293047f087f4501f1ef4ead418dd8436723b28e3293047f087f4501f1ef4ead418dd84CNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < 07c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad907c05601a9a8e5d4481b2a4a16dc0e3c5bc63ad9CNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1fdf06a1b66ff39664b01c6bb6a2aa98d81e8ebe1CNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < 82fc886e244c76fadf05ef1958aaf8815478ccde82fc886e244c76fadf05ef1958aaf8815478ccdeCNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729e3d325c0bdb7bc5d1b4cc8d8441d79794cd03729CNA
Linux480e3e532e31666a18520a7964bb4095d7a16b9a – < 18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfc18227a6bc98bd0ba96ed3ce9d5b28776a5a28dfcCNA
Linux4.12–CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H