Hello, syzbot found the following issue on: HEAD commit: 2e7aff49b5da Merge branches 'for-next/core' and 'for-next/.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=17c49be8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=696fb014d05da3a3 dashboard link: https://syzkaller.appspot.com/bug?extid=43b8370f38144ca1e467 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ef408f67fde3/disk-2e7aff49.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/414ac17a20dc/vmlinux-2e7aff49.xz kernel image: https://storage.googleapis.com/syzbot-assets/a93415d2a7e7/Image-2e7aff49.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+43b8370f38144ca1e467@xxxxxxxxxxxxxxxxxxxxxxxxx ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc2-syzkaller-g2e7aff49b5da #0 Not tainted ------------------------------------------------------ syz.3.631/8987 is trying to acquire lock: ffff0000cc3cd450 (&mm->mmap_lock){++++}-{4:4}, at: __might_fault+0x9c/0x124 mm/memory.c:6750 but task is already holding lock: ffff80009d267938 (crtc_ww_class_mutex){+.+.}-{0:0}, at: drm_mode_obj_get_properties_ioctl+0x194/0x4fc drivers/gpu/drm/drm_mode_object.c:447 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #8 (crtc_ww_class_mutex){+.+.}-{0:0}: ww_acquire_init include/linux/ww_mutex.h:162 [inline] drm_modeset_acquire_init+0x1e4/0x384 drivers/gpu/drm/drm_modeset_lock.c:250 drmm_mode_config_init+0xb98/0x130c drivers/gpu/drm/drm_mode_config.c:453 vkms_modeset_init drivers/gpu/drm/vkms/vkms_drv.c:158 [inline] vkms_create drivers/gpu/drm/vkms/vkms_drv.c:219 [inline] vkms_init+0x2fc/0x600 drivers/gpu/drm/vkms/vkms_drv.c:256 do_one_initcall+0x254/0x9f8 init/main.c:1266 do_initcall_level+0x154/0x214 init/main.c:1328 do_initcalls+0x58/0xac init/main.c:1344 do_basic_setup+0x8c/0xa0 init/main.c:1363 kernel_init_freeable+0x324/0x478 init/main.c:1577 kernel_init+0x24/0x2a0 init/main.c:1466 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 -> #7 (crtc_ww_class_acquire){+.+.}-{0:0}: ww_acquire_init include/linux/ww_mutex.h:161 [inline] drm_modeset_acquire_init+0x1c4/0x384 drivers/gpu/drm/drm_modeset_lock.c:250 drm_client_modeset_commit_atomic+0xd8/0x724 drivers/gpu/drm/drm_client_modeset.c:1009 drm_client_modeset_commit_locked+0xd0/0x4a8 drivers/gpu/drm/drm_client_modeset.c:1173 drm_client_modeset_commit+0x50/0x7c drivers/gpu/drm/drm_client_modeset.c:1199 __drm_fb_helper_restore_fbdev_mode_unlocked+0xd4/0x178 drivers/gpu/drm/drm_fb_helper.c:237 drm_fb_helper_set_par+0xc4/0x110 drivers/gpu/drm/drm_fb_helper.c:1351 fbcon_init+0xf34/0x1eb8 drivers/video/fbdev/core/fbcon.c:1113 visual_init+0x27c/0x548 drivers/tty/vt/vt.c:1011 do_bind_con_driver+0x7dc/0xe04 drivers/tty/vt/vt.c:3833 do_take_over_console+0x4ac/0x5f0 drivers/tty/vt/vt.c:4399 do_fbcon_takeover+0x158/0x260 drivers/video/fbdev/core/fbcon.c:549 do_fb_registered drivers/video/fbdev/core/fbcon.c:2988 [inline] fbcon_fb_registered+0x370/0x4ec drivers/video/fbdev/core/fbcon.c:3008 do_register_framebuffer drivers/video/fbdev/core/fbmem.c:449 [inline] register_framebuffer+0x470/0x610 drivers/video/fbdev/core/fbmem.c:515 __drm_fb_helper_initial_config_and_unlock+0x137c/0x1910 drivers/gpu/drm/drm_fb_helper.c:1841 drm_fb_helper_initial_config+0x48/0x64 drivers/gpu/drm/drm_fb_helper.c:1906 drm_fbdev_client_hotplug+0x158/0x22c drivers/gpu/drm/drm_fbdev_client.c:51 drm_client_register+0x144/0x1e0 drivers/gpu/drm/drm_client.c:140 drm_fbdev_client_setup+0x1a4/0x39c drivers/gpu/drm/drm_fbdev_client.c:158 drm_client_setup+0x28/0x9c drivers/gpu/drm/drm_client_setup.c:29 vkms_create drivers/gpu/drm/vkms/vkms_drv.c:230 [inline] vkms_init+0x4f0/0x600 drivers/gpu/drm/vkms/vkms_drv.c:256 do_one_initcall+0x254/0x9f8 init/main.c:1266 do_initcall_level+0x154/0x214 init/main.c:1328 do_initcalls+0x58/0xac init/main.c:1344 do_basic_setup+0x8c/0xa0 init/main.c:1363 kernel_init_freeable+0x324/0x478 init/main.c:1577 kernel_init+0x24/0x2a0 init/main.c:1466 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 -> #6 (&client->modeset_mutex){+.+.}-{4:4}: __mutex_lock_common+0x218/0x28f4 kernel/locking/mutex.c:585 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 drm_client_modeset_probe+0x304/0x3f64 drivers/gpu/drm/drm_client_modeset.c:834 __drm_fb_helper_initial_config_and_unlock+0x104/0x1910 drivers/gpu/drm/drm_fb_helper.c:1818 drm_fb_helper_initial_config+0x48/0x64 drivers/gpu/drm/drm_fb_helper.c:1906 drm_fbdev_client_hotplug+0x158/0x22c drivers/gpu/drm/drm_fbdev_client.c:51 drm_client_register+0x144/0x1e0 drivers/gpu/drm/drm_client.c:140 drm_fbdev_client_setup+0x1a4/0x39c drivers/gpu/drm/drm_fbdev_client.c:158 drm_client_setup+0x28/0x9c drivers/gpu/drm/drm_client_setup.c:29 vkms_create drivers/gpu/drm/vkms/vkms_drv.c:230 [inline] vkms_init+0x4f0/0x600 drivers/gpu/drm/vkms/vkms_drv.c:256 do_one_initcall+0x254/0x9f8 init/main.c:1266 do_initcall_level+0x154/0x214 init/main.c:1328 do_initcalls+0x58/0xac init/main.c:1344 do_basic_setup+0x8c/0xa0 init/main.c:1363 kernel_init_freeable+0x324/0x478 init/main.c:1577 kernel_init+0x24/0x2a0 init/main.c:1466 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 -> #5 (&helper->lock){+.+.}-{4:4}: __mutex_lock_common+0x218/0x28f4 kernel/locking/mutex.c:585 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 __drm_fb_helper_restore_fbdev_mode_unlocked+0xb4/0x178 drivers/gpu/drm/drm_fb_helper.c:228 drm_fb_helper_set_par+0xc4/0x110 drivers/gpu/drm/drm_fb_helper.c:1351 fbcon_init+0xf34/0x1eb8 drivers/video/fbdev/core/fbcon.c:1113 visual_init+0x27c/0x548 drivers/tty/vt/vt.c:1011 do_bind_con_driver+0x7dc/0xe04 drivers/tty/vt/vt.c:3833 do_take_over_console+0x4ac/0x5f0 drivers/tty/vt/vt.c:4399 do_fbcon_takeover+0x158/0x260 drivers/video/fbdev/core/fbcon.c:549 do_fb_registered drivers/video/fbdev/core/fbcon.c:2988 [inline] fbcon_fb_registered+0x370/0x4ec drivers/video/fbdev/core/fbcon.c:3008 do_register_framebuffer drivers/video/fbdev/core/fbmem.c:449 [inline] register_framebuffer+0x470/0x610 drivers/video/fbdev/core/fbmem.c:515 __drm_fb_helper_initial_config_and_unlock+0x137c/0x1910 drivers/gpu/drm/drm_fb_helper.c:1841 drm_fb_helper_initial_config+0x48/0x64 drivers/gpu/drm/drm_fb_helper.c:1906 drm_fbdev_client_hotplug+0x158/0x22c drivers/gpu/drm/drm_fbdev_client.c:51 drm_client_register+0x144/0x1e0 drivers/gpu/drm/drm_client.c:140 drm_fbdev_client_setup+0x1a4/0x39c drivers/gpu/drm/drm_fbdev_client.c:158 drm_client_setup+0x28/0x9c drivers/gpu/drm/drm_client_setup.c:29 vkms_create drivers/gpu/drm/vkms/vkms_drv.c:230 [inline] vkms_init+0x4f0/0x600 drivers/gpu/drm/vkms/vkms_drv.c:256 do_one_initcall+0x254/0x9f8 init/main.c:1266 do_initcall_level+0x154/0x214 init/main.c:1328 do_initcalls+0x58/0xac init/main.c:1344 do_basic_setup+0x8c/0xa0 init/main.c:1363 kernel_init_freeable+0x324/0x478 init/main.c:1577 kernel_init+0x24/0x2a0 init/main.c:1466 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 -> #4 (console_lock){+.+.}-{0:0}: console_lock+0x19c/0x1f4 kernel/printk/printk.c:2833 __bch2_print_string_as_lines fs/bcachefs/util.c:267 [inline] bch2_print_string_as_lines+0x2c/0xd4 fs/bcachefs/util.c:286 __bch2_fsck_err+0x1864/0x2544 fs/bcachefs/error.c:411 bch2_check_fix_ptr fs/bcachefs/buckets.c:112 [inline] bch2_check_fix_ptrs+0x15b8/0x515c fs/bcachefs/buckets.c:266 bch2_trigger_extent+0x71c/0x814 fs/bcachefs/buckets.c:856 bch2_key_trigger fs/bcachefs/bkey_methods.h:87 [inline] bch2_gc_mark_key+0x4b4/0xb70 fs/bcachefs/btree_gc.c:634 bch2_gc_btree fs/bcachefs/btree_gc.c:670 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline] bch2_check_allocations+0x1018/0x48f4 fs/bcachefs/btree_gc.c:1133 bch2_run_recovery_pass+0xe4/0x1d4 fs/bcachefs/recovery_passes.c:191 bch2_run_recovery_passes+0x30c/0x73c fs/bcachefs/recovery_passes.c:244 bch2_fs_recovery+0x32d8/0x55dc fs/bcachefs/recovery.c:861 bch2_fs_start+0x30c/0x53c fs/bcachefs/super.c:1037 bch2_fs_get_tree+0x938/0x1030 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3507 path_mount+0x590/0xe04 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __arm64_sys_mount+0x4d4/0x5ac fs/namespace.c:4034 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #3 (&c->fsck_error_msgs_lock){+.+.}-{4:4}: __mutex_lock_common+0x218/0x28f4 kernel/locking/mutex.c:585 __mutex_lock kernel/locking/mutex.c:735 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787 __bch2_fsck_err+0x344/0x2544 fs/bcachefs/error.c:282 bch2_check_fix_ptr fs/bcachefs/buckets.c:112 [inline] bch2_check_fix_ptrs+0x15b8/0x515c fs/bcachefs/buckets.c:266 bch2_trigger_extent+0x71c/0x814 fs/bcachefs/buckets.c:856 bch2_key_trigger fs/bcachefs/bkey_methods.h:87 [inline] bch2_gc_mark_key+0x4b4/0xb70 fs/bcachefs/btree_gc.c:634 bch2_gc_btree fs/bcachefs/btree_gc.c:670 [inline] bch2_gc_btrees fs/bcachefs/btree_gc.c:729 [inline] bch2_check_allocations+0x1018/0x48f4 fs/bcachefs/btree_gc.c:1133 bch2_run_recovery_pass+0xe4/0x1d4 fs/bcachefs/recovery_passes.c:191 bch2_run_recovery_passes+0x30c/0x73c fs/bcachefs/recovery_passes.c:244 bch2_fs_recovery+0x32d8/0x55dc fs/bcachefs/recovery.c:861 bch2_fs_start+0x30c/0x53c fs/bcachefs/super.c:1037 bch2_fs_get_tree+0x938/0x1030 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3507 path_mount+0x590/0xe04 fs/namespace.c:3834 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __arm64_sys_mount+0x4d4/0x5ac fs/namespace.c:4034 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #2 (&c->mark_lock){++++}-{0:0}: percpu_down_read+0x5c/0x2e8 include/linux/percpu-rwsem.h:51 __bch2_disk_reservation_add+0xc4/0x9f4 fs/bcachefs/buckets.c:1170 bch2_disk_reservation_add+0x29c/0x4f4 fs/bcachefs/buckets.h:367 __bch2_folio_reservation_get+0x2dc/0x798 fs/bcachefs/fs-io-pagecache.c:428 bch2_folio_reservation_get fs/bcachefs/fs-io-pagecache.c:477 [inline] bch2_page_mkwrite+0xa70/0xe44 fs/bcachefs/fs-io-pagecache.c:637 do_page_mkwrite+0x140/0x2dc mm/memory.c:3176 do_shared_fault mm/memory.c:5398 [inline] do_fault mm/memory.c:5460 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x1418/0x5890 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0xf0c/0x17b0 mm/memory.c:6112 faultin_page mm/gup.c:1196 [inline] __get_user_pages+0x15e4/0x3134 mm/gup.c:1494 __get_user_pages_locked mm/gup.c:1824 [inline] __gup_longterm_locked+0xda0/0x12a4 mm/gup.c:2532 pin_user_pages_remote+0x170/0x24c mm/gup.c:3577 process_vm_rw_single_vec mm/process_vm_access.c:106 [inline] process_vm_rw_core mm/process_vm_access.c:216 [inline] process_vm_rw+0x56c/0x9ac mm/process_vm_access.c:284 __do_sys_process_vm_writev mm/process_vm_access.c:304 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:299 [inline] __arm64_sys_process_vm_writev+0xdc/0xf8 mm/process_vm_access.c:299 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #1 (sb_pagefaults#3){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_pagefault include/linux/fs.h:1890 [inline] bch2_page_mkwrite+0x280/0xe44 fs/bcachefs/fs-io-pagecache.c:614 do_page_mkwrite+0x140/0x2dc mm/memory.c:3176 do_shared_fault mm/memory.c:5398 [inline] do_fault mm/memory.c:5460 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x1418/0x5890 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0xf0c/0x17b0 mm/memory.c:6112 faultin_page mm/gup.c:1196 [inline] __get_user_pages+0x15e4/0x3134 mm/gup.c:1494 __get_user_pages_locked mm/gup.c:1824 [inline] __gup_longterm_locked+0xda0/0x12a4 mm/gup.c:2532 pin_user_pages_remote+0x170/0x24c mm/gup.c:3577 process_vm_rw_single_vec mm/process_vm_access.c:106 [inline] process_vm_rw_core mm/process_vm_access.c:216 [inline] process_vm_rw+0x56c/0x9ac mm/process_vm_access.c:284 __do_sys_process_vm_writev mm/process_vm_access.c:304 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:299 [inline] __arm64_sys_process_vm_writev+0xdc/0xf8 mm/process_vm_access.c:299 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #0 (&mm->mmap_lock){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 __might_fault+0xc4/0x124 mm/memory.c:6751 drm_mode_object_get_properties+0x208/0x540 drivers/gpu/drm/drm_mode_object.c:407 drm_mode_obj_get_properties_ioctl+0x2bc/0x4fc drivers/gpu/drm/drm_mode_object.c:459 drm_ioctl_kernel+0x26c/0x368 drivers/gpu/drm/drm_ioctl.c:796 drm_ioctl+0x624/0xb14 drivers/gpu/drm/drm_ioctl.c:893 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0x14c/0x1cc fs/ioctl.c:892 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 other info that might help us debug this: Chain exists of: &mm->mmap_lock --> crtc_ww_class_acquire --> crtc_ww_class_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(crtc_ww_class_mutex); lock(crtc_ww_class_acquire); lock(crtc_ww_class_mutex); rlock(&mm->mmap_lock); *** DEADLOCK *** 2 locks held by syz.3.631/8987: #0: ffff80009d267910 (crtc_ww_class_acquire){+.+.}-{0:0}, at: drm_mode_obj_get_properties_ioctl+0x194/0x4fc drivers/gpu/drm/drm_mode_object.c:447 #1: ffff80009d267938 (crtc_ww_class_mutex){+.+.}-{0:0}, at: drm_mode_obj_get_properties_ioctl+0x194/0x4fc drivers/gpu/drm/drm_mode_object.c:447 stack backtrace: CPU: 1 UID: 0 PID: 8987 Comm: syz.3.631 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x154/0x1c0 kernel/locking/lockdep.c:2074 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 __might_fault+0xc4/0x124 mm/memory.c:6751 drm_mode_object_get_properties+0x208/0x540 drivers/gpu/drm/drm_mode_object.c:407 drm_mode_obj_get_properties_ioctl+0x2bc/0x4fc drivers/gpu/drm/drm_mode_object.c:459 drm_ioctl_kernel+0x26c/0x368 drivers/gpu/drm/drm_ioctl.c:796 drm_ioctl+0x624/0xb14 drivers/gpu/drm/drm_ioctl.c:893 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0x14c/0x1cc fs/ioctl.c:892 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
