CVE-2026-80679

Summary

In the Linux kernel, the following vulnerability has been resolved:

s390/dasd: Fix potential NULL pointer dereference

dasd_release_space() checks the implementation of the is_ese() discipline function before calling it to determine if a given device is an ESE DASD.

The current usage of the logical AND operator will lead to a NULL pointer dereference as the function is called even if the function pointer is NULL.

Fix this by using the logical OR operator.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < dbf2ae34d2f1390a9fc1abf3dce7f809e022caaeaffected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < 3000367a512b1283ca52230bf21f8c91dfbec45baffected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4caffected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < e156c70c505c6c9adce3b7be5a82025f00544709affected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < 3453a993a3f14c1684560ecf26585046976f6ac6affected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < 86cdfd061509bcde84f3145f7221ba64e3e53b1faffected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < 96b8e09b09539f252a5eeea6baebd93c2e3779bdaffected
LinuxLinux91dc4a197569230683ca8bad551e655a4bf14c30 < 9973026f572db6b67570cadc30942f3014e41079affected
LinuxLinux5.3affected
LinuxLinux0 < 5.3unaffected
LinuxLinux5.10.265 <= 5.10.*unaffected
LinuxLinux5.15.216 <= 5.15.*unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.151 <= 6.6.*unaffected
LinuxLinux6.12.103 <= 6.12.*unaffected
LinuxLinux6.18.44 <= 6.18.*unaffected
LinuxLinux7.1.8 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References