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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusReceived → PublishedNVD modified 2026-10-19 08:47
- First seenunscoredNVD modified 2026-10-19 09:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 8
- https://git.kernel.org/stable/c/2a1780f9fc2493bd34c418a0be6fc58943afcecf
- https://git.kernel.org/stable/c/449f3bada7a9fad8b8cdf4bb20baf27ee9ca56c5
- https://git.kernel.org/stable/c/4a042d8e5f34282577ece50515cea8bb1246914d
- https://git.kernel.org/stable/c/536407b272402af679155910d7fdeeb4834eefb9
- https://git.kernel.org/stable/c/57db27ccc162afe0726cffec0ae62e410ed2d0e9
- https://git.kernel.org/stable/c/644b666c202cce12ccfcf9ded67089b18f4f7659
- https://git.kernel.org/stable/c/6452c13646af7c13d7f6668b6690cfb2427e7f7b
- https://git.kernel.org/stable/c/bd8b4572528f9604a13bf3c7c2a167f5cf222f72