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Jiri Olsa f5d242825c bpf: Clear buf on error in __bpf_get_task_stack 
Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that
use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM
argument and we should initialize the buf on every return path.

Adding missing buf memset for __bpf_get_task_stack fail paths. This
provides deterministic buffer contents, which is useful when the buffer
is used directly as a map key.

Fixes: 06ab134ce8 ("bpf: Refcount task stack in bpf_get_task_stack")
Fixes: b992f01e66 ("bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20260803210149.296496-10-jolsa@kernel.org
2026-08-05 11:32:29 -07:00
..
bpf
bpf: Clear buf on error in __bpf_get_task_stack
2026-08-05 11:32:29 -07:00
cgroup
cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
2026-07-06 12:05:02 -10:00
configs
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debug
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dma
Merge tag 'dma-mapping-7.2-2026-06-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
2026-06-17 12:20:21 -07:00
entry
futex: Provide infrastructure to plug the non contended robust futex unlock race
2026-06-03 11:38:52 +02:00
events
perf/aux: Fix page UAF in map_range()
2026-07-10 12:12:24 +02:00
futex
futex/requeue: Revert "Prevent NULL pointer dereference in remove_waiter() on self-deadlock""
2026-07-02 22:14:08 +02:00
gcov
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irq
genirq/msi: Correct CONFIG_PCI_MSI_ARCH_FALLBACKS macro name in comment
2026-06-22 22:32:01 +02:00
kcsan
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livepatch
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liveupdate
liveupdate: fix GET_NAME ioctl argument validation
2026-07-16 09:25:30 +03:00
locking
locking/rt: Fix the incorrect RCU protection in rt_spin_unlock()
2026-06-21 11:51:13 +02:00
module
module: decompress: check return value of module_extend_max_pages()
2026-06-04 16:37:32 +00:00
power
Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-06-19 10:14:34 -07:00
printk
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rcu
Merge tag 'timers-nohz-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
2026-06-15 13:48:52 +05:30
sched
Merge tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
2026-07-13 15:55:17 -07:00
time
posix-cpu-timers: Prevent UAF caused by non-leader exec() race
2026-07-05 11:44:06 +02:00
trace
bpf: Rename ARG_CONST_SIZE{,_OR_ZERO} to ARG_MEM_SIZE{,_OR_ZERO}
2026-08-03 00:29:14 +02:00
unwind
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.gitignore
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acct.c
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async.c
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audit_fsnotify.c
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audit_tree.c
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audit_watch.c
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audit.c
audit: fix potential integer overflow in audit_log_n_hex()
2026-07-08 14:22:14 -04:00
audit.h
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auditfilter.c
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auditsc.c
Merge tag 'audit-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2026-06-17 12:55:09 +01:00
backtracetest.c
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bounds.c
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capability.c
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cfi.c
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compat.c
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configs.c
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context_tracking.c
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cpu_pm.c
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cpu.c
Merge tag 'smp-urgent-2026-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2026-06-23 16:43:24 -07:00
crash_core_test.c
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crash_core.c
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crash_dump_dm_crypt.c
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crash_reserve.c
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cred.c
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delayacct.c
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dma.c
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elfcorehdr.c
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exec_domain.c
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exec_state.c
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exit.c
posix-cpu-timers: Prevent UAF caused by non-leader exec() race
2026-07-05 11:44:06 +02:00
exit.h
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extable.c
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fail_function.c
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fork.c
bpf,fork: wipe ->bpf_storage before bailouts that access it
2026-06-29 15:08:23 -07:00
freezer.c
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gen_kheaders.sh
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groups.c
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hung_task.c
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iomem.c
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irq_work.c
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jump_label.c
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kallsyms_internal.h
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kallsyms_selftest.c
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kallsyms_selftest.h
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kallsyms.c
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kcmp.c
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Kconfig.freezer
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Kconfig.hz
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Kconfig.kexec
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Kconfig.locks
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Kconfig.preempt
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kcov.c
kcov: use WRITE_ONCE() for selftest mode stores
2026-06-04 14:49:26 -07:00
kexec_core.c
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kexec_elf.c
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kexec_file.c
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kexec_internal.h
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kexec.c
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kheaders.c
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kprobes.c
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kstack_erase.c
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ksyms_common.c
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ksysfs.c
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kthread.c
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latencytop.c
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Makefile
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module_signature.c
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notifier.c
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nscommon.c
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nsproxy.c
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nstree.c
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padata.c
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panic.c
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params.c
kernel: param: initialize module_kset in a pure_initcall
2026-06-08 23:27:56 +02:00
pid_namespace.c
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pid_sysctl.h
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pid.c
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profile.c
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ptrace.c
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range.c
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reboot.c
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regset.c
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relay.c
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resource_kunit.c
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resource.c
resource: Make resource_alignment() input const resource
2026-06-23 12:08:51 -05:00
rseq.c
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scftorture.c
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scs.c
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seccomp.c
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signal.c
posix-cpu-timers: Prevent UAF caused by non-leader exec() race
2026-07-05 11:44:06 +02:00
smp.c
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smpboot.c
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smpboot.h
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softirq.c
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stacktrace.c
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static_call_inline.c
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static_call.c
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stop_machine.c
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sys_ni.c
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sys.c
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sysctl-test.c
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sysctl.c
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task_work.c
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taskstats.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
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up.c
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user_namespace.c
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user-return-notifier.c
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user.c
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utsname_sysctl.c
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utsname.c
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vhost_task.c
vhost_task_create: kill unnecessary .exit_signal initialization
2026-06-10 02:17:00 -04:00
vmcore_info.c
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watch_queue.c
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watchdog_buddy.c
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watchdog_perf.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
Merge tag 'wq-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2026-06-17 11:57:44 +01:00