orangefs: fix double-free of trailer_buf on readdir copy failure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89498
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:31 UTC
Updated2026-09-11 20:19:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: orangefs: fix double-free of trailer_buf on readdir copy failure On a readdir downcall, orangefs_devreq_write_iter() frees op->downcall.trailer_buf with vfree() when copy_from_iter_full() fails, but does not clear the pointer before goto Efault. The waiter in do_readdir() is then woken with a negative status and frees the same pointer again on its r < 0 path, causing a deterministic double-free. A client holding /dev/pvfs2-req triggers it by sending a readdir downcall whose declared trailer_size exceeds the bytes it supplies. Clear the pointer after freeing so the readdir-side vfree() becomes a no-op.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.063510000 (date 2026-09-13)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 382f4581e67f57209c7aa67e39f26ba076306a2e 2f5454a25127854c232fde5d1d65d16fbcd42d43 git Not specified
CNA Linux Linux affected 382f4581e67f57209c7aa67e39f26ba076306a2e f796f38a324e89547738f4b70cc33be5be2bc6da git Not specified
CNA Linux Linux affected 382f4581e67f57209c7aa67e39f26ba076306a2e 519f4146b8b8c5f20c2ad01913acd6df2df8fc8e git Not specified
CNA Linux Linux affected 382f4581e67f57209c7aa67e39f26ba076306a2e f574296be7f46eb60beca851240b526df232f480 git Not specified
CNA Linux Linux affected 4.12 Not specified
CNA Linux Linux unaffected 4.12 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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