CVE-2026-89716

Unknown

Description

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.

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedSep 11, 2026
First seenSep 11, 2026

How to fix

Update
  • Linux Linux923578d0f0d0703c3db61ab35dc37075ae53b0bd, e23fac4ab2a5728386477b98a402a1042b21bffb, ec7607ac4717ff521c9c1e9d8271c26293345513 or later

Affected products

ProductAffected versionsFixed in
Linux Linuxdc75a0d93bd5a1c64104efb4ec680463afbdd755 ≤ v < 923578d0f0d0703c3db61ab35dc37075ae53b0bd, dc75a0d93bd5a1c64104efb4ec680463afbdd755 ≤ v < e23fac4ab2a5728386477b98a402a1042b21bffb, dc75a0d93bd5a1c64104efb4ec680463afbdd755 ≤ v < ec7607ac4717ff521c9c1e9d8271c26293345513, 6.16923578d0f0d0703c3db61ab35dc37075ae53b0bd, e23fac4ab2a5728386477b98a402a1042b21bffb, ec7607ac4717ff521c9c1e9d8271c26293345513

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