Sumit Garg
c37821e061
kdb: Make memory allocations more robust ...
commit 93f7a6d818deef69d0ba652d46bae6fbabbf365c upstream.
Currently kdb uses in_interrupt() to determine whether its library
code has been called from the kgdb trap handler or from a saner calling
context such as driver init. This approach is broken because
in_interrupt() alone isn't able to determine kgdb trap handler entry from
normal task context. This can happen during normal use of basic features
such as breakpoints and can also be trivially reproduced using:
echo g > /proc/sysrq-trigger
We can improve this by adding check for in_dbg_master() instead which
explicitly determines if we are running in debugger context.
Cc: stable@vger.kernel.org
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/1611313556-4004-1-git-send-email-sumit.garg@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 10:26:10 +01:00
bpf: Fix truncation handling for mod32 dst reg wrt zero
2021-02-26 10:10:26 +01:00
cgroup: fix psi monitor for root cgroup
2021-02-17 10:35:14 +01:00
kdb: Make memory allocations more robust
2021-03-04 10:26:10 +01:00
swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb"
2020-11-18 19:20:32 +01:00
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
gcov: add support for GCC 10.1
2020-09-17 13:47:56 +02:00
genirq/msi: Activate Multi-MSI early when MSI_FLAG_ACTIVATE_EARLY is set
2021-02-10 09:25:30 +01:00
rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
2021-01-30 13:54:09 +01:00
PM: hibernate: flush swap writer after marking
2021-02-03 23:25:57 +01:00
printk: handle blank console arguments passed in.
2020-10-01 13:18:04 +02:00
arm64: smp: Tell RCU about CPUs that fail to come online
2020-11-24 13:29:01 +01:00
sched: Reenable interrupts in do_sched_yield()
2020-12-30 11:51:03 +01:00
tick/sched: Remove bogus boot "safety" check
2021-01-06 14:48:40 +01:00
tracing: Check length before giving out the filter buffer
2021-02-17 10:35:14 +01:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:17:32 +02:00
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:30:59 +02:00
kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling
2020-12-30 11:50:56 +01:00
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:31:22 +02:00
keys: Fix request_key() cache
2020-01-17 19:48:42 +01:00
don't dump the threads that had been already exiting when zapped.
2020-11-18 19:20:31 +01:00
fail_function: Remove a redundant mutex unlock
2020-11-24 13:29:18 +01:00
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
Revert "libata, freezer: avoid block device removal while system is frozen"
2019-10-06 09:11:37 -06:00
futex: Handle faults correctly for PI futexes
2021-01-30 13:54:10 +01:00
kbuild: add variables for compression tools
2020-09-03 11:27:10 +02:00
jump_label: Don't warn on __exit jump entries
2019-08-29 15:10:10 +01:00
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:16:44 +02:00
exec: Transform exec_update_mutex into a rw_semaphore
2021-01-09 13:44:55 +01:00
kernel: kexec: remove the lock operation of system_transition_mutex
2021-02-03 23:25:56 +01:00
kexec_elf: support 32 bit ELF files
2019-09-06 23:58:44 +02:00
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:50:22 +02:00
tracing/kprobe: Fix to support kretprobe events on unloaded modules
2021-02-13 13:52:54 +01:00
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
elfcore: fix building with clang
2021-01-23 15:57:55 +01:00
module: delay kobject uevent until after module init call
2021-01-06 14:48:40 +01:00
kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
2020-10-01 13:17:23 +02:00
padata: add separate cpuhp node for CPUHP_PADATA_DEAD
2020-06-17 16:40:22 +02:00
panic: ensure preemption is disabled during panic()
2019-10-07 15:47:19 -07:00
ptrace: Set PF_SUPERPRIV when checking capability
2020-11-24 13:29:24 +01:00
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:20:30 +01:00
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:40:51 +02:00
/dev/mem: Revoke mappings when a driver claims the region
2020-06-24 17:50:35 +02:00
seccomp: Set PF_SUPERPRIV when checking capability
2020-11-24 13:29:24 +01:00
ptrace: fix task_join_group_stop() for the case when current is traced
2020-11-10 12:37:24 +01:00
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 15:35:49 +01:00
stacktrace: Don't skip first entry on noncurrent tasks
2019-11-04 21:19:25 +01:00
stop_machine: Avoid potential race behaviour
2019-10-17 12:47:12 +02:00
kernel/sys.c: avoid copying possible padding bytes in copy_to_user
2020-10-01 13:17:23 +02:00
kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
2020-10-01 13:17:10 +02:00
kernel: sysctl: make drop_caches write-only
2020-01-04 19:18:32 +01:00
taskstats: fix data-race
2020-01-09 10:19:54 +01:00
usermodehelper: reset umask to default before executing user process
2020-10-14 10:32:58 +02:00
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-24 08:36:52 +01:00
workqueue: Restrict affinity change to rescuer
2021-02-07 15:35:49 +01:00
c37821e061