loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:319:16 shift exponent 108 is too large for 64-bit type 's64' (aka 'long long') CPU: 0 PID: 4292 Comm: syz-executor166 Not tainted 6.1.134-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321 extBalloc fs/jfs/jfs_extent.c:319 [inline] extAlloc+0xbd8/0xdec fs/jfs/jfs_extent.c:122 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248 __block_write_begin_int+0x340/0x13b4 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2102 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:304 generic_perform_write+0x278/0x55c mm/filemap.c:3845 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3973 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x91c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ================================================================================ ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2644:11 shift exponent 94 is too large for 32-bit type 'int' CPU: 0 PID: 4292 Comm: syz-executor166 Not tainted 6.1.134-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c lib/ubsan.c:321 dbSplit+0x1d4/0x1d8 fs/jfs/jfs_dmap.c:2644 dbAdjCtl+0x2c8/0x8c8 fs/jfs/jfs_dmap.c:2536 dbAllocDmap+0xb0/0x128 fs/jfs/jfs_dmap.c:2047 dbAllocNext+0x364/0x3a8 fs/jfs/jfs_dmap.c:1182 dbAlloc+0x3d8/0xb68 fs/jfs/jfs_dmap.c:816 extBalloc fs/jfs/jfs_extent.c:326 [inline] extAlloc+0x404/0xdec fs/jfs/jfs_extent.c:122 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248 __block_write_begin_int+0x340/0x13b4 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2102 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:304 generic_perform_write+0x278/0x55c mm/filemap.c:3845 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3973 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x91c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 ================================================================================ ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4292 at fs/jfs/jfs_dmap.c:2878 dbAdjTree+0x3d8/0x4b8 fs/jfs/jfs_dmap.c:2878 Modules linked in: CPU: 0 PID: 4292 Comm: syz-executor166 Not tainted 6.1.134-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dbAdjTree+0x3d8/0x4b8 fs/jfs/jfs_dmap.c:2878 lr : dbAdjTree+0x3d8/0x4b8 fs/jfs/jfs_dmap.c:2878 sp : ffff800021237040 x29: ffff800021237050 x28: 0000000000000000 x27: 000000000000006c x26: 0000000040000155 x25: 0000000040000000 x24: dfff800000000000 x23: ffff0000d836c008 x22: 0000000000000555 x21: 000000000000006b x20: 0000000040000000 x19: ffff0000d836c000 x18: 1fffe00036798576 x17: 3d3d3d3d3d3d3d3d x16: ffff80001232ab6c x15: 0000000000000000 x14: 1ffff00002b600b2 x13: dfff800000000000 x12: ffff7000030e18b0 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800009a30a20 x8 : ffff0000dea33780 x7 : ffff8000123fa2b8 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 000000000000006b x1 : 0000000000000555 x0 : 0000000040000155 Call trace: dbAdjTree+0x3d8/0x4b8 fs/jfs/jfs_dmap.c:2878 dbSplit+0x10c/0x1d8 fs/jfs/jfs_dmap.c:2651 dbAdjCtl+0x2c8/0x8c8 fs/jfs/jfs_dmap.c:2536 dbAllocDmap+0xb0/0x128 fs/jfs/jfs_dmap.c:2047 dbAllocNext+0x364/0x3a8 fs/jfs/jfs_dmap.c:1182 dbAlloc+0x3d8/0xb68 fs/jfs/jfs_dmap.c:816 extBalloc fs/jfs/jfs_extent.c:326 [inline] extAlloc+0x404/0xdec fs/jfs/jfs_extent.c:122 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248 __block_write_begin_int+0x340/0x13b4 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2102 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:304 generic_perform_write+0x278/0x55c mm/filemap.c:3845 __generic_file_write_iter+0x168/0x388 mm/filemap.c:3973 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4005 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x91c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 81738 hardirqs last enabled at (81737): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (81737): [] __schedule+0x100c/0x1d44 kernel/sched/core.c:6567 hardirqs last disabled at (81738): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (81722): [] softirq_handle_end kernel/softirq.c:421 [inline] softirqs last enabled at (81722): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:606 softirqs last disabled at (81705): [] __do_softirq+0x14/0x20 kernel/softirq.c:612 ---[ end trace 0000000000000000 ]--- JFS: block map error in dbBackSplit