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CVE-2022-50096

x86/kprobes: Update kcb status flag after singlestepping PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: x86/kprobes: Update kcb status flag after singlestepping Fix kprobes to update kcb (kprobes control block) status flag to KPROBE_HIT_SSDONE even if the kp->post_handler is not set. This bug may cause a kernel panic if another INT3 user runs right after kprobes because kprobe_int3_handler() misunderstands the INT3 is kprobe's single stepping INT3.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected ba7d1dae9fe866abe74bb1e849fb85983b7c4c37 before edc2ac7c7265b33660fa0190898966b49966b855; affected 6256e668b7af9d81472e03c6a171630c08f8858a before 1cbf3882cb372bbe752efd7c3045ca1c9ab40ac6; affected 6256e668b7af9d81472e03c6a171630c08f8858a before b9c3401f7cac6ae291a16784dadcd1bf116218fe; affected 6256e668b7af9d81472e03c6a171630c08f8858a before 663cdda2716b70751df9c7e60b81bd0850fdfe3c; affected 6256e668b7af9d81472e03c6a171630c08f8858a before dec8784c9088b131a1523f582c2194cfc8107dc0
Linux / Linuxaffected 5.13; unaffected 0 before 5.13; unaffected 5.15.61 through 5.15.*; unaffected 5.18.18 through 5.18.*; unaffected 5.19.2 through 5.19.*; unaffected 6.0 through *

CWE

No CWE identifiers supplied.

References