loop0: detected capacity change from 0 to 264192 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:633:20 index 1128417612 is out of range for type 'atomic_t[128]' CPU: 0 PID: 6420 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller-00127-ge40939bbfc68 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348 dbNextAG+0x5d4/0x5f8 fs/jfs/jfs_dmap.c:633 diAlloc+0x134/0x1530 fs/jfs/jfs_imap.c:1342 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x240/0x3a8 fs/namei.c:4115 do_mkdirat+0x20c/0x610 fs/namei.c:4138 __do_sys_mkdirat fs/namei.c:4153 [inline] __se_sys_mkdirat fs/namei.c:4151 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4151 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 ================================================================================ ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:1343:3 index 1128417612 is out of range for type 'struct mutex[128]' CPU: 0 PID: 6420 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller-00127-ge40939bbfc68 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348 diAlloc+0x11c4/0x1530 fs/jfs/jfs_imap.c:1343 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x240/0x3a8 fs/namei.c:4115 do_mkdirat+0x20c/0x610 fs/namei.c:4138 __do_sys_mkdirat fs/namei.c:4153 [inline] __se_sys_mkdirat fs/namei.c:4151 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4151 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 ================================================================================ Unable to handle kernel paging request at virtual address ffff6004d517f87b KASAN: maybe wild-memory-access in range [0xffff0026a8bfc3d8-0xffff0026a8bfc3df] 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, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001b0266000 [ffff6004d517f87b] pgd=00000002343ac003, p4d=00000002343ac003, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6420 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller-00127-ge40939bbfc68 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock_common+0xf4/0x21a0 kernel/locking/mutex.c:582 lr : __mutex_lock_common+0xcc/0x21a0 kernel/locking/mutex.c:580 sp : ffff8000971f7660 x29: ffff8000971f77e0 x28: dfff800000000000 x27: 1ffff00012452adc x26: ffff800092295000 x25: ffff700012e3eee8 x24: 0000000000000000 x23: 0000000000000000 x22: ffff8000819c5084 x21: 0000000000000000 x20: 0000000000000000 x19: ffff0026a8bfc378 x18: 1fffe00036842bc6 x17: ffff80008deed000 x16: ffff80008031093c x15: 0000000000000002 x14: 1ffff00011bde0ac x13: dfff800000000000 x12: 0000000000000005 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000003 x8 : 1fffe004d517f87b x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000000 x1 : 0000000000000080 x0 : ffff0026a8bfc3d8 Call trace: __mutex_lock_common+0xf4/0x21a0 kernel/locking/mutex.c:582 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 diAlloc+0x168/0x1530 fs/jfs/jfs_imap.c:1343 ialloc+0x84/0x7c0 fs/jfs/jfs_inode.c:56 jfs_mkdir+0x190/0xa0c fs/jfs/namei.c:225 vfs_mkdir+0x240/0x3a8 fs/namei.c:4115 do_mkdirat+0x20c/0x610 fs/namei.c:4138 __do_sys_mkdirat fs/namei.c:4153 [inline] __se_sys_mkdirat fs/namei.c:4151 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4151 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: b946e348 35000128 91018260 d343fc08 (387c6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: b946e348 ldr w8, [x26, #1760] 4: 35000128 cbnz w8, 0x28 8: 91018260 add x0, x19, #0x60 c: d343fc08 lsr x8, x0, #3 * 10: 387c6908 ldrb w8, [x8, x28] <-- trapping instruction