Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 PID: 3262 Comm: syz-fuzzer Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81802550>] (dump_backtrace) from [<818027c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252) r7:00000080 r6:60000193 r5:00000000 r4:82b58344 [<818027ac>] (show_stack) from [<81809e98>] (__dump_stack lib/dump_stack.c:79 [inline]) [<818027ac>] (show_stack) from [<81809e98>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120) [<81809de0>] (dump_stack) from [<81803358>] (panic+0x130/0x378 kernel/panic.c:231) r7:81f4bca4 r6:82a390a4 r5:00000000 r4:82c6b0d0 [<81803228>] (panic) from [<818200c0>] (schedule_debug kernel/sched/core.c:4822 [inline]) [<81803228>] (panic) from [<818200c0>] (__schedule+0xcb8/0xcc8 kernel/sched/core.c:4967) r3:57ac6e9d r2:8667223c r1:81f5a420 r0:81f4bca4 r7:00000001 [<8181f408>] (__schedule) from [<8182077c>] (preempt_schedule_irq+0x54/0x88 kernel/sched/core.c:5530) r10:858d1040 r9:86672000 r8:80200ad4 r7:866733ec r6:ffffffff r5:20000013 r4:86672000 [<81820728>] (preempt_schedule_irq) from [<80200afc>] (svc_preempt+0x8/0x18) Exception stack(0x866733b8 to 0x86673400) 33a0: 00000000 5b71e000 33c0: 828a2680 60000093 60000013 82b09c5c 804bc6c4 858d16e8 828a2680 00000002 33e0: 858d1040 8667344c 866733f8 86673408 8181dacc 802bf778 20000013 ffffffff r5:20000013 r4:802bf778 [<802bf56c>] (lock_release) from [<804bc6d8>] (rcu_lock_release include/linux/rcupdate.h:272 [inline]) [<802bf56c>] (lock_release) from [<804bc6d8>] (rcu_read_unlock+0x40/0x78 include/linux/rcupdate.h:710) r10:00000001 r9:82b0d6f4 r8:81f4bfc0 r7:81f40284 r6:82bfd5bf r5:835f4840 r4:82bfd5bf [<804bc698>] (rcu_read_unlock) from [<804c0850>] (get_mem_cgroup_from_mm+0xd0/0x348 mm/memcontrol.c:1045) r5:835f4840 r4:8341b000 [<804c0780>] (get_mem_cgroup_from_mm) from [<804c96e8>] (mem_cgroup_charge+0x68/0x3b4 mm/memcontrol.c:6730) r10:86012614 r9:86673528 r8:8667356c r7:835f4840 r6:00112cca r5:df2c67a0 r4:df2c67a0 [<804c9680>] (mem_cgroup_charge) from [<8041e46c>] (__add_to_page_cache_locked+0x148/0x604 mm/filemap.c:846) r9:86673528 r8:8667356c r7:00112cca r6:86012610 r5:df2c67a0 r4:df2c67a0 [<8041e324>] (__add_to_page_cache_locked) from [<8041e9d4>] (add_to_page_cache_lru+0x88/0x1dc mm/filemap.c:940) r10:86012614 r9:86012610 r8:8667356c r7:0000000f r6:0000001b r5:00112cca r4:df2c67a0 [<8041e94c>] (add_to_page_cache_lru) from [<8042efd4>] (page_cache_ra_unbounded+0x1e0/0x294 mm/readahead.c:222) r6:0000001b r5:86673688 r4:df2c67a0 [<8042edf4>] (page_cache_ra_unbounded) from [<8042f184>] (do_page_cache_ra+0xfc/0x150 mm/readahead.c:267) r10:8601253c r9:00000001 r8:00000010 r7:80000013 r6:8042f3e4 r5:86673688 r4:86012498 [<8042f088>] (do_page_cache_ra) from [<8042f3e4>] (ondemand_readahead+0x20c/0x47c mm/readahead.c:549) r10:00000001 r9:0000000c r8:00000020 r7:00000004 r6:86673688 r5:00000000 r4:83dd5220 [<8042f1d8>] (ondemand_readahead) from [<8042f718>] (page_cache_async_ra mm/readahead.c:607 [inline]) [<8042f1d8>] (ondemand_readahead) from [<8042f718>] (page_cache_async_ra+0xc4/0x110 mm/readahead.c:581) r10:86673818 r9:df2c6350 r8:86012610 r7:86673714 r6:00000000 r5:86673688 r4:83dd5220 [<8042f654>] (page_cache_async_ra) from [<80420adc>] (page_cache_async_readahead include/linux/pagemap.h:863 [inline]) [<8042f654>] (page_cache_async_ra) from [<80420adc>] (filemap_readahead mm/filemap.c:2350 [inline]) [<8042f654>] (page_cache_async_ra) from [<80420adc>] (filemap_get_pages+0x254/0x648 mm/filemap.c:2391) r7:86673714 r6:00000003 r5:86673830 r4:00000004 [<80420888>] (filemap_get_pages) from [<80420f98>] (filemap_read+0xc8/0x4e0 mm/filemap.c:2458) r10:86673818 r9:86012498 r8:805ff25c r7:86673830 r6:00000000 r5:86673818 r4:86673830 [<80420ed0>] (filemap_read) from [<80421548>] (generic_file_read_iter+0x198/0x234 mm/filemap.c:2609) r10:00001000 r9:00000000 r8:805ff25c r7:00001000 r6:00000000 r5:86673818 r4:86673830 [<804213b0>] (generic_file_read_iter) from [<805ff25c>] (ext4_file_read_iter fs/ext4/file.c:130 [inline]) [<804213b0>] (generic_file_read_iter) from [<805ff25c>] (ext4_file_read_iter+0x54/0x118 fs/ext4/file.c:113) r10:00001000 r9:00000000 r8:00001000 r7:86673888 r6:86012498 r5:86673830 r4:86673818 [<805ff208>] (ext4_file_read_iter) from [<804da2bc>] (__kernel_read+0x130/0x314 fs/read_write.c:454) r7:86673888 r6:00000000 r5:00000000 r4:83dd5140 [<804da18c>] (__kernel_read) from [<8073759c>] (integrity_kernel_read+0x20/0x28 security/integrity/iint.c:191) r9:00000000 r8:00400000 r7:865dd000 r6:00000000 r5:83dd5140 r4:00003000 [<8073757c>] (integrity_kernel_read) from [<8073a754>] (ima_calc_file_hash_tfm+0x178/0x228 security/integrity/ima/ima_crypto.c:484) [<8073a5dc>] (ima_calc_file_hash_tfm) from [<8073ac7c>] (ima_calc_file_shash security/integrity/ima/ima_crypto.c:515 [inline]) [<8073a5dc>] (ima_calc_file_hash_tfm) from [<8073ac7c>] (ima_calc_file_hash+0x124/0x8b8 security/integrity/ima/ima_crypto.c:572) r10:8601253c r9:00000000 r8:00000001 r7:00000013 r6:832fab90 r5:856d3c00 r4:83dd5140 [<8073ab58>] (ima_calc_file_hash) from [<8073bff8>] (ima_collect_measurement+0x224/0x260 security/integrity/ima/ima_api.c:252) r10:8608b644 r9:86012554 r8:865e3110 r7:00000003 r6:00000000 r5:865e3110 r4:83dd5140 [<8073bdd4>] (ima_collect_measurement) from [<807392a8>] (process_measurement+0x46c/0x7b0 security/integrity/ima/ima_main.c:330) r10:00000000 r9:86012554 r8:865e3110 r7:00000001 r6:00000001 r5:00000000 r4:83dd5140 [<80738e3c>] (process_measurement) from [<80739664>] (ima_file_check+0x78/0xa0 security/integrity/ima/ima_main.c:499) r10:00000000 r9:00000000 r8:83dd5140 r7:00000000 r6:00000000 r5:86673d48 r4:00000006 [<807395ec>] (ima_file_check) from [<804ec638>] (do_open fs/namei.c:3367 [inline]) [<807395ec>] (ima_file_check) from [<804ec638>] (path_openat+0x20c/0x10f8 fs/namei.c:3498) r7:86673e58 r6:82a3c39c r5:86673f20 r4:00020002 [<804ec42c>] (path_openat) from [<804ef4ac>] (do_filp_open+0x7c/0x12c fs/namei.c:3525) r10:00000142 r9:86672000 r8:80200224 r7:00000001 r6:86673f20 r5:86673e58 r4:86673f58 [<804ef430>] (do_filp_open) from [<804d782c>] (do_sys_openat2+0xa8/0x160 fs/open.c:1187) r7:ffffff9c r6:00000009 r5:8358c000 r4:86673f58 [<804d7784>] (do_sys_openat2) from [<804d7cd0>] (do_sys_open fs/open.c:1203 [inline]) [<804d7784>] (do_sys_openat2) from [<804d7cd0>] (__do_sys_openat fs/open.c:1219 [inline]) [<804d7784>] (do_sys_openat2) from [<804d7cd0>] (sys_openat+0xa4/0xcc fs/open.c:1214) r7:00000142 r6:00000000 r5:0cae40a0 r4:ffffff9c [<804d7c2c>] (sys_openat) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86673fa8 to 0x86673ff0) 3fa0: 00000000 00000000 ffffff9c 0cae40a0 000a0002 000001a4 3fc0: 00000000 00000000 00000000 00000142 00000005 7f6dffff 028000e0 00d36560 3fe0: 0cae40a3 029beb6c 00012368 000b9338 r5:00000000 r4:00000000 Rebooting in 86400 seconds..