s390/dasd: Fix potential NULL pointer dereference
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://git.kernel.org/stable/c/3000367a512b1283ca52230bf21f8c91dfbec45bhttps://git.kernel.org/stable/c/3453a993a3f14c1684560ecf26585046976f6ac6https://git.kernel.org/stable/c/86cdfd061509bcde84f3145f7221ba64e3e53b1fhttps://git.kernel.org/stable/c/96b8e09b09539f252a5eeea6baebd93c2e3779bdhttps://git.kernel.org/stable/c/9973026f572db6b67570cadc30942f3014e41079https://git.kernel.org/stable/c/cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4chttps://git.kernel.org/stable/c/dbf2ae34d2f1390a9fc1abf3dce7f809e022caaehttps://git.kernel.org/stable/c/e156c70c505c6c9adce3b7be5a82025f00544709