CVE-2026-89716zram: validate deflate params
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlib_deflate_workspacesize(), which triggers BUG_ON() if winbits value is outside of valid ranges.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from dc75a0d93bd5a1c64104efb4ec680463afbdd755 before 923578d0f0d0703c3db61ab35dc37075ae53b0bd; from dc75a0d93bd5a1c64104efb4ec680463afbdd755 before e23fac4ab2a5728386477b98a402a1042b21bffb; from dc75a0d93bd5a1c64104efb4ec680463afbdd755 before ec7607ac4717ff521c9c1e9d8271c26293345513 | CNA record |
References
- https://git.kernel.org/stable/c/923578d0f0d0703c3db61ab35dc37075ae53b0bd
- https://git.kernel.org/stable/c/e23fac4ab2a5728386477b98a402a1042b21bffb
- https://git.kernel.org/stable/c/ec7607ac4717ff521c9c1e9d8271c26293345513
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.