================================================================== BUG: KASAN: user-memory-access in instrument_atomic_read include/linux/instrumented.h:82 [inline] BUG: KASAN: user-memory-access in atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline] BUG: KASAN: user-memory-access in dqput+0x79/0x470 fs/quota/dquot.c:871 Read of size 4 at addr 000000000074023f by task syz-executor/6399 CPU: 1 UID: 0 PID: 6399 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 kasan_report+0x117/0x150 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x264/0x2c0 mm/kasan/generic.c:200 instrument_atomic_read include/linux/instrumented.h:82 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline] dqput+0x79/0x470 fs/quota/dquot.c:871 dqput_all fs/quota/dquot.c:425 [inline] __dquot_drop+0x209/0x420 fs/quota/dquot.c:1611 jfs_evict_inode+0xb9/0x440 fs/jfs/inode.c:173 evict+0x61e/0xb10 fs/inode.c:846 dispose_list fs/inode.c:888 [inline] evict_inodes+0x75a/0x7f0 fs/inode.c:942 generic_shutdown_super+0xaa/0x2d0 fs/super.c:632 kill_block_super+0x44/0x90 fs/super.c:1725 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa9d7e48b57 Code: a2 c7 05 1c ca 1f 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff967e2da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fa9d7ed864a RCX: 00007fa9d7e48b57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff967e2e60 RBP: 00007fff967e2e60 R08: 00007fff967e3e60 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff967e3ef0 R13: 00007fa9d7ed864a R14: 0000000000022b7d R15: 00007fff967e3f30 ==================================================================