{"id":"CVE-2026-89498","summary":"orangefs: fix double-free of trailer_buf on readdir copy failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\norangefs: fix double-free of trailer_buf on readdir copy failure\n\nOn a readdir downcall, orangefs_devreq_write_iter() frees\nop-\u003edowncall.trailer_buf with vfree() when copy_from_iter_full() fails,\nbut does not clear the pointer before goto Efault. The waiter in\ndo_readdir() is then woken with a negative status and frees the same\npointer again on its r \u003c 0 path, causing a deterministic double-free.\nA client holding /dev/pvfs2-req triggers it by sending a readdir\ndowncall whose declared trailer_size exceeds the bytes it supplies.\n\nClear the pointer after freeing so the readdir-side vfree() becomes a\nno-op.","modified":"2026-09-15T03:48:19.859017747Z","published":"2026-09-11T19:43:48.096Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89498.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/433c2e470053cc9c712314d3d8c3dfbc862d68eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/712c4235fcc73c11a2f1d59a499d489e49c374a4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89498.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89498"},{"type":"PACKAGE","url":"https://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":"382f4581e67f57209c7aa67e39f26ba076306a2e"},{"fixed":"712c4235fcc73c11a2f1d59a499d489e49c374a4"},{"fixed":"433c2e470053cc9c712314d3d8c3dfbc862d68eb"},{"fixed":"6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad"},{"fixed":"9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa"},{"fixed":"2f5454a25127854c232fde5d1d65d16fbcd42d43"},{"fixed":"f796f38a324e89547738f4b70cc33be5be2bc6da"},{"fixed":"519f4146b8b8c5f20c2ad01913acd6df2df8fc8e"},{"fixed":"f574296be7f46eb60beca851240b526df232f480"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89498.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.12.0"},{"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":"6.12.109"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.50"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89498.json"}}],"schema_version":"1.9.0"}