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CVE-2022-50075

tracing/eprobes: Have event probes be consistent with kprobes and uprobes PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: tracing/eprobes: Have event probes be consistent with kprobes and uprobes Currently, if a symbol "@" is attempted to be used with an event probe (eprobes), it will cause a NULL pointer dereference crash. Both kprobes and uprobes can reference data other than the main registers. Such as immediate address, symbols and the current task name. Have eprobes do the same thing. For "comm", if "comm" is used and the event being attached to does not have the "comm" field, then make it the "$comm" that kprobes has. This is consistent to the way histograms and filters work.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 7491e2c442781a1860181adb5ab472a52075f393 before b489aca082a23033a3d8355cfb0032f0e2523440; affected 7491e2c442781a1860181adb5ab472a52075f393 before 47cc883f21fa3bcf24891b4b455f4cd461ce2d6e; affected 7491e2c442781a1860181adb5ab472a52075f393 before 6a832ec3d680b3a4f4fad5752672827d71bae501
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 5.15.63 through 5.15.*; unaffected 5.19.4 through 5.19.*; unaffected 6.0 through *

CWE

No CWE identifiers supplied.

References