- kprobes: Protect kprobe_blacklist with RCU
. RCU-protect kprobe_blacklist and use kfree_rcu() to prevent UAF
races during module unloading and enable safe atomic lookups.
- tracing/probes: Fix multi-probe field use-after-free and BTF parsing
. Multi-probe UAF fix: Duplicate field and type strings on
trace_probe_event to prevent UAF when freeing primary probe.
. BTF member lookup fixes:
- Check the containing inner struct/union kflag when resolving
anonymous members to ensure correct bitfield offset calculation.
- Prevent unnamed bitfields from being pushed to anon_stack in
btf_find_struct_member(), avoiding false lookup errors.
- Fix code block indentation in get_bitoffset_of_field().
- uprobes: Error pointer safety
. Guard free_trace_uprobe() with IS_ERR_OR_NULL() to avoid crashing
during automatic cleanup when an error pointer is returned.
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Merge tag 'probes-fixes-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- Protect kprobe_blacklist with RCU
RCU-protect kprobe_blacklist and use kfree_rcu() to prevent UAF races
during module unloading and enable safe atomic lookups.
- Fix multi-probe field use-after-free
Duplicate field and type strings on trace_probe_event to prevent UAF
when freeing primary probe
- Fix probe BTF member lookup:
Check the containing inner struct/union kflag when resolving
anonymous members to ensure correct bitfield offset calculation
Prevent unnamed bitfields from being pushed to anon_stack in
btf_find_struct_member(), avoiding false lookup errors
Fix code block indentation in get_bitoffset_of_field()
- uprobes error pointer safety
Guard free_trace_uprobe() with IS_ERR_OR_NULL() to avoid crashing
during automatic cleanup when an error pointer is returned
* tag 'probes-fixes-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
kprobes: Protect kprobe_blacklist with RCU
tracing/probes: Fix use-after-free on field name/type of events with multiple probes
tracing/probes: Fix code indent in get_bitoffset_of_field()
tracing/probes: Fix BTF kflag check for anonymous struct member access
tracing/probes: Fix anon_stack check for unnamed bitfields in btf_find_struct_member
uprobes: guard trace cleanup against error pointers
421066905c