CVE-2026-89457
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
s390/dasd: Guard sysfs discipline callbacks against unallocated private data
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device->private, either directly or through the DASD_DEFINE_ATTR() macro. During dasd_generic_set_online() the discipline is assigned before check_device() allocates device->private, so an unprivileged read of one of these world-readable attributes in that window dereferences a NULL pointer and panics. Guard the dereference inside each callback that actually touches device->private.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 644b666c202cce12ccfcf9ded67089b18f4f7659 | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 4a042d8e5f34282577ece50515cea8bb1246914d | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | bd8b4572528f9604a13bf3c7c2a167f5cf222f72 | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 57db27ccc162afe0726cffec0ae62e410ed2d0e9 | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 536407b272402af679155910d7fdeeb4834eefb9 | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 6452c13646af7c13d7f6668b6690cfb2427e7f7b | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 449f3bada7a9fad8b8cdf4bb20baf27ee9ca56c5 | Unavailable | None listed |
| c729696bcf8b23450043dd9c9972c15e53419ae4 | affected | git | 2a1780f9fc2493bd34c418a0be6fc58943afcecf | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.3 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |