================================================================== BUG: KASAN: slab-use-after-free in __lock_acquire+0x114/0x763c kernel/locking/lockdep.c:5005 Read of size 8 at addr ffff0000cc333568 by task ksoftirqd/1/23 CPU: 1 PID: 23 Comm: ksoftirqd/1 Not tainted 6.9.0-rc4-syzkaller-g6a71d2909427 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x198/0x538 mm/kasan/report.c:488 kasan_report+0xd8/0x138 mm/kasan/report.c:601 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381 __lock_acquire+0x114/0x763c kernel/locking/lockdep.c:5005 lock_acquire+0x248/0x73c kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162 __wake_up_common_lock kernel/sched/wait.c:105 [inline] __wake_up+0x38/0x1b0 kernel/sched/wait.c:127 lbmIODone+0x250/0x1318 bio_endio+0x770/0x7b4 block/bio.c:1603 req_bio_endio block/blk-mq.c:786 [inline] blk_update_request+0x4ac/0xdf0 block/blk-mq.c:931 blk_mq_end_request+0x54/0x88 block/blk-mq.c:1054 lo_complete_rq+0x188/0x2f4 drivers/block/loop.c:366 blk_complete_reqs block/blk-mq.c:1129 [inline] blk_done_softirq+0x11c/0x168 block/blk-mq.c:1134 __do_softirq+0x2e4/0xd2c kernel/softirq.c:554 run_ksoftirqd+0x6c/0x14c kernel/softirq.c:924 smpboot_thread_fn+0x4b0/0x90c kernel/smpboot.c:164 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Allocated by task 8824: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace+0x264/0x3f0 mm/slub.c:3997 kmalloc include/linux/slab.h:628 [inline] lbmLogInit fs/jfs/jfs_logmgr.c:1822 [inline] lmLogInit+0x35c/0x1768 fs/jfs/jfs_logmgr.c:1270 open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline] lmLogOpen+0x42c/0xdb4 fs/jfs/jfs_logmgr.c:1069 jfs_mount_rw+0xe4/0x5b8 fs/jfs/jfs_mount.c:257 jfs_fill_super+0x4f0/0x9f0 fs/jfs/super.c:565 mount_bdev+0x1d4/0x2a0 fs/super.c:1658 jfs_do_mount+0x44/0x58 fs/jfs/super.c:670 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1779 do_new_mount+0x278/0x900 fs/namespace.c:3352 path_mount+0x590/0xe04 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3875 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Freed by task 8824: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_free_info+0x54/0x6c mm/kasan/generic.c:579 poison_slab_object+0x124/0x18c mm/kasan/common.c:240 __kasan_slab_free+0x3c/0x70 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kfree+0x150/0x3e8 mm/slub.c:4390 lbmLogShutdown fs/jfs/jfs_logmgr.c:1865 [inline] lmLogInit+0xf80/0x1768 fs/jfs/jfs_logmgr.c:1416 open_inline_log fs/jfs/jfs_logmgr.c:1175 [inline] lmLogOpen+0x42c/0xdb4 fs/jfs/jfs_logmgr.c:1069 jfs_mount_rw+0xe4/0x5b8 fs/jfs/jfs_mount.c:257 jfs_fill_super+0x4f0/0x9f0 fs/jfs/super.c:565 mount_bdev+0x1d4/0x2a0 fs/super.c:1658 jfs_do_mount+0x44/0x58 fs/jfs/super.c:670 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1779 do_new_mount+0x278/0x900 fs/namespace.c:3352 path_mount+0x590/0xe04 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3875 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 The buggy address belongs to the object at ffff0000cc333500 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 104 bytes inside of freed 192-byte region [ffff0000cc333500, ffff0000cc3335c0) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10c333 flags: 0x5ffe00000000800(slab|node=0|zone=2|lastcpupid=0xfff) page_type: 0xffffffff() raw: 05ffe00000000800 ffff0000c0001a00 dead000000000100 dead000000000122 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000cc333400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000cc333480: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000cc333500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000cc333580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff0000cc333600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================