CVE-2026-89717
CVE CVE-2026-89717EUVD EUVD-2026-76629Published 2026-09-11T19:46:30.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: zram: set default primary compressor in zram_destroy_comps() Patch series "zram: fix zram issues reported by sashiko". Sashiko drove by and reported [1] a couple of zram issues: a possible BUG_ON() in zlib code due to missing winbits range validation and one possible NULL-ptr dereference in zcomp. Both are low risk yet still worth fixing. This patch (of 2): zram_destroy_comps() resets all compressors and leaves them set to NULL, including the primary one, which is invalid device state, as now comp_algorithm_show()->strcmp() can be called on a NULL compressor. Set default primary compressor in zram_destroy_comps().
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 486fd58af7ac1098b68370b1d4d9f94a2a1c7124 <dde75313eed0b014c437f48dd75c0308b592cbf9; 486fd58af7ac1098b68370b1d4d9f94a2a1c7124 <dea8f13c3dfad8b990f8ea96c997aabeebbc1d22; patch: 7.3-rc1; patch: 7.2.4; 6.12; c4e5683c3031a33dc46954e99d37cbd2f706cdb6; patch: 0; 486fd58af7ac1098b68370b1d4d9f94a2a1c7124 <5cec3e60e9f2d1324179df3aa91656f90095cf8f; 6e20720b12299595154857fa98222729f0d5823c; 6.6.57 <6.7; patch: 6.18.51; 6.11.4 <6.12
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
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