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linux/kernel
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Peilin Ye 06b46481d5 bpf: Fix NULL pointer dereference in __btf_resolve_helper_id() 
[ Upstream commit 5b801dfb7f ]

Prevent __btf_resolve_helper_id() from dereferencing `btf_vmlinux`
as NULL. This patch fixes the following syzbot bug:

    https://syzkaller.appspot.com/bug?id=f823224ada908fa5c207902a5a62065e53ca0fcc

Reported-by: syzbot+ee09bda7017345f1fbe6@syzkaller.appspotmail.com
Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200714180904.277512-1-yepeilin.cs@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-11 15:35:34 +02:00
..
bpf
bpf: Fix NULL pointer dereference in __btf_resolve_helper_id()
2020-08-11 15:35:34 +02:00
cgroup
cgroup: fix cgroup_sk_alloc() for sk_clone_lock()
2020-07-22 09:33:57 +02:00
configs
compiler: remove CONFIG_OPTIMIZE_INLINING entirely
2020-04-07 10:43:42 -07:00
debug
kgdb: Avoid suspicious RCU usage warning
2020-07-09 09:39:30 +02:00
dma
dma-direct: add missing set_memory_decrypted() for coherent mapping
2020-06-30 15:36:07 -04:00
events
uprobes: Change handle_swbp() to send SIGTRAP with si_code=SI_KERNEL, to fix GDB regression
2020-07-29 10:19:38 +02:00
gcov
kernel/gcov/fs.c: gcov_seq_next() should increase position index
2020-04-10 15:36:22 -07:00
irq
genirq/affinity: Handle affinity setting on inactive interrupts correctly
2020-07-22 09:34:26 +02:00
livepatch
Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-11-27 11:42:01 -08:00
locking
locking/lockdep: Improve 'invalid wait context' splat
2020-04-08 12:05:07 +02:00
power
PM: hibernate: Freeze kernel threads in software_resume()
2020-04-27 10:30:30 +02:00
printk
printk: queue wake_up_klogd irq_work only if per-CPU areas are ready
2020-04-10 13:18:57 -07:00
rcu
Merge branch 'urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
2020-04-14 08:36:41 +02:00
sched
sched/fair: handle case of task_h_load() returning 0
2020-07-22 09:34:26 +02:00
time
random32: update the net random state on interrupt and activity
2020-08-07 09:33:10 +02:00
trace
ring-buffer: Zero out time extend if it is nested and not absolute
2020-06-30 15:36:27 -04:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acct.c
acct: stop using get_seconds()
2019-12-18 18:07:31 +01:00
async.c
…
audit_fsnotify.c
fsnotify: use helpers to access data by data_type
2020-03-23 18:19:06 +01:00
audit_tree.c
…
audit_watch.c
Merge tag 'fsnotify_for_v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2020-04-06 08:58:42 -07:00
audit.c
revert: 1320a4052e ("audit: trigger accompanying records when no rules present")
2020-08-05 09:58:36 +02:00
audit.h
revert: 1320a4052e ("audit: trigger accompanying records when no rules present")
2020-08-05 09:58:36 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:32:31 +02:00
auditsc.c
revert: 1320a4052e ("audit: trigger accompanying records when no rules present")
2020-08-05 09:58:36 +02:00
backtracetest.c
…
bounds.c
…
capability.c
…
compat.c
y2038: remove unused time32 interfaces
2020-02-21 11:22:15 -08:00
configs.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
context_tracking.c
context-tracking: Introduce CONFIG_HAVE_TIF_NOHZ
2020-02-14 16:05:04 +01:00
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:33:05 +02:00
cpu.c
sched/core: Fix illegal RCU from offline CPUs
2020-06-22 09:32:36 +02:00
crash_core.c
…
crash_dump.c
…
cred.c
kernel: doc: remove outdated comment cred.c
2020-03-25 10:04:01 -05:00
delayacct.c
…
dma.c
…
elfcore.c
kernel/elfcore.c: include proper prototypes
2019-09-25 17:51:39 -07:00
exec_domain.c
…
exit.c
exit: Move preemption fixup up, move blocking operations down
2020-06-22 09:32:36 +02:00
extable.c
kernel/extable.c: use address-of operator on section symbols
2020-04-07 10:43:42 -07:00
fail_function.c
…
fork.c
fork: prevent accidental access to clone3 features
2020-05-08 17:31:50 +02:00
freezer.c
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex.c
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:17:15 -07:00
gen_kheaders.sh
kheaders: explain why include/config/autoconf.h is excluded from md5sum
2019-11-11 20:10:01 +09:00
groups.c
…
hung_task.c
…
iomem.c
…
irq_work.c
lockdep: Annotate irq_work
2020-03-21 16:00:24 +01:00
jump_label.c
…
kallsyms.c
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:13:29 +02:00
kcmp.c
kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve
2020-03-25 10:04:01 -05:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
sched/rt, locking: Use CONFIG_PREEMPTION
2019-12-08 14:37:36 +01:00
Kconfig.preempt
sched/Kconfig: Fix spelling mistake in user-visible help text
2019-11-12 11:35:32 +01:00
kcov.c
kernel/kcov.c: fix typos in kcov_remote_start documentation
2020-05-07 19:27:20 -07:00
kexec_core.c
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kexec_elf.c
…
kexec_file.c
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kexec_internal.h
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kexec.c
kexec: add machine_kexec_post_load()
2020-01-08 16:32:55 +00:00
kheaders.c
…
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-10 15:36:22 -07:00
kprobes.c
kprobes: Do not expose probe addresses to non-CAP_SYSLOG
2020-07-16 08:13:30 +02:00
ksysfs.c
…
kthread.c
kthread: Do not preempt current task if it is going to call schedule()
2020-03-20 13:06:20 +01:00
latencytop.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
Makefile
kcov: ignore fault-inject and stacktrace
2020-01-31 10:30:41 -08:00
module_signature.c
…
module_signing.c
…
module-internal.h
…
module.c
module: Do not expose section addresses to non-CAP_SYSLOG
2020-07-16 08:13:30 +02:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-03-21 18:56:06 -07:00
nsproxy.c
ns: Introduce Time Namespace
2020-01-14 12:20:48 +01:00
padata.c
padata: upgrade smp_mb__after_atomic to smp_mb in padata_do_serial
2020-07-09 09:39:37 +02:00
panic.c
locking/refcount: Remove unused 'refcount_error_report()' function
2019-11-25 09:15:42 +01:00
params.c
…
pid_namespace.c
pid: Improve the comment about waiting in zap_pid_ns_processes
2020-02-28 16:29:12 -06:00
pid.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-04-10 12:59:56 -07:00
profile.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
ptrace.c
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
2020-01-18 13:51:39 +01:00
range.c
…
reboot.c
…
relay.c
kernel/relay.c: handle alloc_percpu returning NULL in relay_open
2020-06-07 11:33:00 +02:00
resource.c
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:48:58 +02:00
rseq.c
rseq: Reject unknown flags on rseq unregister
2019-12-25 10:41:20 +01:00
seccomp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
signal.c
task_work: teach task_work_add() to do signal_wake_up()
2020-07-09 09:39:31 +02:00
smp.c
cpu/hotplug: Move bringup of secondary CPUs out of smp_init()
2020-03-25 12:59:37 +01:00
smpboot.c
…
smpboot.h
…
softirq.c
lockdep: Rename trace_{hard,soft}{irq_context,irqs_enabled}()
2020-03-21 16:03:54 +01:00
stackleak.c
…
stacktrace.c
stacktrace: Get rid of unneeded '!!' pattern
2019-11-11 10:30:59 +01:00
stop_machine.c
stop_machine: Make stop_cpus() static
2020-01-17 10:19:21 +01:00
sys_ni.c
y2038: allow disabling time32 system calls
2019-11-15 14:38:30 +01:00
sys.c
sys/sysinfo: Respect boottime inside time namespace
2020-03-03 19:34:32 +01:00
sysctl_binary.c
sysctl: Remove the sysctl system call
2019-11-26 13:03:56 -06:00
sysctl-test.c
kunit: allow kunit tests to be loaded as a module
2020-01-09 16:42:29 -07:00
sysctl.c
mm/compaction: Disable compact_unevictable_allowed on RT
2020-04-02 09:35:31 -07:00
task_work.c
task_work: teach task_work_add() to do signal_wake_up()
2020-07-09 09:39:31 +02:00
taskstats.c
taskstats: fix data-race
2019-12-04 15:18:39 +01:00
test_kprobes.c
…
torture.c
Merge tag 'smp-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 18:06:39 -07:00
tracepoint.c
…
tsacct.c
tsacct: add 64-bit btime field
2019-12-18 18:07:31 +01:00
ucount.c
ucount: Make sure ucounts in /proc/sys/user don't regress again
2020-04-07 21:51:27 +02:00
uid16.c
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uid16.h
…
umh.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-05-15 13:10:06 -07:00
up.c
smp/up: Make smp_call_function_single() match SMP semantics
2020-02-07 15:34:12 +01:00
user_namespace.c
…
user-return-notifier.c
…
user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
…
watchdog.c
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-01-17 11:19:22 +01:00
workqueue_internal.h
…
workqueue.c
workqueue: Remove the warning in wq_worker_sleeping()
2020-04-08 11:35:20 +02:00