? syscall_exit_to_user_mode (kernel/entry/common.c:129 kernel/entry/common.c:296) ? do_raw_spin_unlock (arch/x86/include/asm/atomic.h:29 include/linux/atomic/atomic-instrumented.h:28 include/asm-generic/qspinlock.h:28 kernel/locking/spinlock_debug.c:100 kernel/locking/spinlock_debug.c:140) ? syscall_enter_from_user_mode (arch/x86/include/asm/irqflags.h:45 arch/x86/include/asm/irqflags.h:80 kernel/entry/common.c:109) ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4501) ? lock_is_held_type (kernel/locking/lockdep.c:5382 kernel/locking/lockdep.c:5684) ? rcu_read_unlock (include/linux/rcupdate.h:723 (discriminator 5)) new_sync_write (fs/read_write.c:505 (discriminator 1)) kernfs_fop_write_iter (fs/kernfs/file.c:294) upload_unregister_store (lib/test_firmware.c:1060 lib/test_firmware.c:1321) firmware_upload_unregister (drivers/base/firmware_loader/sysfs_upload.c:395) kasan_report (mm/kasan/report.c:162 mm/kasan/report.c:493) ? do_raw_spin_lock (arch/x86/include/asm/atomic.h:202 include/linux/atomic/atomic-instrumented.h:543 include/asm-generic/qspinlock.h:82 kernel/locking/spinlock_debug.c:115) dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4)) ? firmware_upload_unregister (drivers/base/firmware_loader/sysfs_upload.c:395) Read of size 8 at addr ffff8881e186c808 by task fw_upload.sh/2443 BUG: KASAN: use-after-free in firmware_upload_unregister (drivers/base/firmware_loader/sysfs_upload.c:395) If you fix the issue, kindly add following tag On test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU 3.40GHz with 28G memoryĬaused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): These are intended to be small unit tests to exercise individual code paths in the kernel. Test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. Tianfei zhang, LKML, linux-kselftest, lkp, lkpįYI, we noticed the following commit (built with gcc-11):Ĭommit: a37ddddd86037c896c702b4df416bc4e51b2a5a0 ("selftests: firmware: Add firmware upload selftests") 20:42 ` Russ Weight 0 siblings, 1 reply 4+ messages in threadįrom: kernel test robot 7:08 UTC ( / raw)Ĭc: Greg Kroah-Hartman, Matthew Gerlach, Luis Chamberlain, A37ddddd86: BUG:KASAN:use-after-free_in_firmware_upload_unregister archive mirror help / color / mirror / Atom feed * a37ddddd86: BUG:KASAN:use-after-free_in_firmware_upload_unregister 7:08 kernel test robot
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