Description
In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix check for probe enabled in kill_kprobe() In kill_kprobe(), the check whether disarm_kprobe_ftrace() needs to be called always fails. This is because before that we set the KPROBE_FLAG_GONE flag for kprobe so that "!kprobe_disabled(p)" is always false. The disarm_kprobe_ftrace() call introduced by commit: 0cb2f1372baa ("kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler") to fix the NULL pointer reference problem. When the probe is enabled, if we do not disarm it, this problem still exists. Fix it by putting the probe enabled check before setting the KPROBE_FLAG_GONE flag.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e to < f20a067f13106565816b4b6a6b665b2088a63824affected3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e to < c909985dd0c0f74b61e3f8f0e04bf8aa9c8b97c7affected3031313eb3d549b7ad6f9fbcc52ba04412e3eb9e to < 0c76ef3f26d5ef2ac2c21b47e7620cff35809fbbaffected3c5f8d371b7fef3e3714c4a062c7f3b4aa41d122affected9b55d84deec88c02b053a819acf08a6d471dda02affected2295608b44c91df767a5c68027f9c9e52ecb28e7affectedce7ff920092130f249b75f9fe177edb3362fefe8affected3995f7a60feceba6c8f762f4aff3184f90a1291daffected247c62ebdfae450bb76dd89cd4724df6be07df75affected4.4.238 to < 4.5affected4.9.238 to < 4.10affected4.14.200 to < 4.15affected4.19.149 to < 4.20affected5.4.69 to < 5.5affected5.8.13 to < 5.9affected
Linux Linux
Default version status: affected
5.9affected0 to < 5.9unaffected6.0.16 to ≤ 6.0.*unaffected6.1.2 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected