Unrated
zram: validate deflate params
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.
Announced Group revision 1
Original source ↗CVE-2026-89716
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89716
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "dc75a0d93bd5a1c64104efb4ec680463afbdd755",
"lessThan": "923578d0f0d0703c3db61ab35dc37075ae53b0bd",
"versionType": "git"
},
{
"status": "affected",
"version": "dc75a0d93bd5a1c64104efb4ec680463afbdd755",
"lessThan": "e23fac4ab2a5728386477b98a402a1042b21bffb",
"versionType": "git"
},
{
"status": "affected",
"version": "dc75a0d93bd5a1c64104efb4ec680463afbdd755",
"lessThan": "ec7607ac4717ff521c9c1e9d8271c26293345513",
"versionType": "git"
}
],
"programFiles": [
"drivers/block/zram/backend_deflate.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/block/zram/backend_deflate.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89716
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #35196 · Revision 1
- Added to Heist Feed
- Publisher date