loop1: detected capacity change from 0 to 32768 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 16720 at kernel/locking/mutex.c:582 __mutex_lock_common+0x4c4/0xca8 kernel/locking/mutex.c:582 Modules linked in: CPU: 1 PID: 16720 Comm: syz-executor.1 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock_common+0x4c4/0xca8 kernel/locking/mutex.c:582 lr : __mutex_lock_common+0x4c4/0xca8 kernel/locking/mutex.c:582 sp : ffff800016123a20 x29: ffff800016123a90 x28: ffff80000eec8000 x27: ffff80000d5a9220 x26: 0000000000000000 x25: ffff00011a9b0de0 x24: 0000000000000002 x23: ffff800008d81824 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: ffff00011a9b0b10 x18: 0000000000000342 x17: ffff80000c0cd83c x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000012 x12: 0000000000040000 x11: 000000000000291b x10: ffff80001b2aa000 x9 : 9755ec5a2aeac800 x8 : 9755ec5a2aeac800 x7 : 4e5241575f534b43 x6 : ffff80000c091ebc x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000028 Call trace: __mutex_lock_common+0x4c4/0xca8 kernel/locking/mutex.c:582 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 __jfs_xattr_set+0x68/0x108 fs/jfs/xattr.c:916 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941 __vfs_removexattr+0x1fc/0x20c fs/xattr.c:479 __vfs_removexattr_locked+0x158/0x248 fs/xattr.c:514 vfs_removexattr+0x60/0x130 fs/xattr.c:536 removexattr fs/xattr.c:878 [inline] __do_sys_fremovexattr fs/xattr.c:925 [inline] __se_sys_fremovexattr fs/xattr.c:915 [inline] __arm64_sys_fremovexattr+0x168/0x1ec fs/xattr.c:915 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 irq event stamp: 83151 hardirqs last enabled at (83151): [] local_daif_restore arch/arm64/include/asm/daifflags.h:75 [inline] hardirqs last enabled at (83151): [] el0_svc_common+0x40/0x220 arch/arm64/kernel/syscall.c:107 hardirqs last disabled at (83150): [] el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 softirqs last enabled at (83146): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (83144): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- Unable to handle kernel paging request at virtual address 000000010000002c Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000159ac0000 [000000010000002c] pgd=0800000158583003, p4d=0800000158583003, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 16720 Comm: syz-executor.1 Tainted: G W 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : owner_on_cpu include/linux/sched.h:2290 [inline] pc : mutex_can_spin_on_owner kernel/locking/mutex.c:409 [inline] pc : mutex_optimistic_spin+0x1c8/0x254 kernel/locking/mutex.c:452 lr : __mutex_lock_common+0x1b4/0xca8 kernel/locking/mutex.c:607 sp : ffff8000161239c0 x29: ffff8000161239d0 x28: ffff80000eec8000 x27: ffff80000cbb7427 x26: 0000000000000000 x25: ffff00011a9b0de0 x24: ffff00011a9b0b78 x23: ffff800008d81824 x22: ffff80000d37c000 x21: 0000000000000000 x20: 0000000000000000 x19: ffff00011a9b0b10 x18: 0000000000000342 x17: ffff80000c0cd83c x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000012 x12: 0000000000040000 x11: 000000000000291b x10: ffff80000d37c000 x9 : 0000000000000003 x8 : 00000000fffffff8 x7 : 4e5241575f534b43 x6 : ffff800008d81824 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00011a9b0b10 Call trace: mutex_can_spin_on_owner kernel/locking/mutex.c:408 [inline] mutex_optimistic_spin+0x1c8/0x254 kernel/locking/mutex.c:452 __mutex_lock_common+0x1b4/0xca8 kernel/locking/mutex.c:607 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 __jfs_xattr_set+0x68/0x108 fs/jfs/xattr.c:916 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941 __vfs_removexattr+0x1fc/0x20c fs/xattr.c:479 __vfs_removexattr_locked+0x158/0x248 fs/xattr.c:514 vfs_removexattr+0x60/0x130 fs/xattr.c:536 removexattr fs/xattr.c:878 [inline] __do_sys_fremovexattr fs/xattr.c:925 [inline] __se_sys_fremovexattr fs/xattr.c:915 [inline] __arm64_sys_fremovexattr+0x168/0x1ec fs/xattr.c:915 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: 37080148 f9400268 f27df108 54000080 (b9403509) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 37080148 tbnz w8, #1, 0x28 4: f9400268 ldr x8, [x19] 8: f27df108 ands x8, x8, #0xfffffffffffffff8 c: 54000080 b.eq 0x1c // b.none * 10: b9403509 ldr w9, [x8, #52] <-- trapping instruction