CVE-2026-89602

CVE CVE-2026-89602EUVD EUVD-2026-76514Published 2026-09-11T19:45:05.000ZLast changed 2026-09-13T06:31:35.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: erofs: skip sufficiently large global buffers when resizing z_erofs_gbuf_nrpages is advanced only after every global buffer has been grown. If a resize fails after some buffers were enlarged, a retry revisits those enlarged buffers. Retrying the same size then returns -ENOMEM because alloc_pages_bulk() has no pages to add and the unchanged return value is treated as a failure. Retrying an intermediate size allocates a temporary pointer array smaller than gbuf->nrpages and copies more existing pointers than the array can hold. Skip buffers that already satisfy the request. Once all remaining buffers have caught up, advancing z_erofs_gbuf_nrpages again describes the guaranteed minimum size across the pool.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux patch: 6.18.51; patch: 7.2.4; 6.10; d6db47e571dcaecaeaafa8840d00ae849ae3907b <7267557ce98ccd07faaf3bc86382448950cc4ff6; patch: 7.3-rc1; patch: 0; d6db47e571dcaecaeaafa8840d00ae849ae3907b <7f4a89d4f0d6acaf4b756c31de48f2109a257b70; d6db47e571dcaecaeaafa8840d00ae849ae3907b <a7d097cf01301c5da37927c8f26123d006f0fd8a

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.