------------[ cut here ]------------ WARNING: mm/vmalloc.c:4037 at __vmalloc_node_range_noprof+0xe7c/0xe9c mm/vmalloc.c:-1, CPU#0: syz.0.17/4954 Modules linked in: CPU: 0 UID: 0 PID: 4954 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __vmalloc_node_range_noprof+0xe7c/0xe9c mm/vmalloc.c:-1 lr : __vmalloc_node_range_noprof+0xe78/0xe9c mm/vmalloc.c:4037 sp : ffff80009b987520 x29: ffff80009b987660 x28: 00e8000000000703 x27: 0000000000000000 x26: 0000000000000000 x25: ffff700013730ec0 x24: fffffdffbf800000 x23: 0000000000000000 x22: 00000000ffffffff x21: 0000000000000000 x20: 0000000000000dc0 x19: dfff800000000000 x18: ffff8001237ae000 x17: ffff0001acf6ce25 x16: ffff0000ccab1d94 x15: 0000000000000017 x14: 0000000000640b5d x13: 0000000000000001 x12: 0000000000000000 x11: ffffc1ffbf800000 x10: 000000f000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 00000000ffffffff x6 : 0000000000000000 x5 : 00e8000000000703 x4 : 0000000000000dc0 x3 : ffff800080aa2768 x2 : 0000000000000000 x1 : ffff0000ccab1d80 x0 : 0000000000000000 Call trace: __vmalloc_node_range_noprof+0xe7c/0xe9c mm/vmalloc.c:-1 (P) __vmalloc_node_noprof+0xec/0x14c mm/vmalloc.c:4165 vzalloc_noprof+0x3c/0x4c mm/vmalloc.c:4243 alloc_bitset drivers/md/dm-cache-policy-internal.h:126 [inline] cache_create drivers/md/dm-cache-target.c:2529 [inline] cache_ctr+0x1258/0x1f1c drivers/md/dm-cache-target.c:2649 dm_table_add_target+0x44c/0xb18 drivers/md/dm-table.c:749 populate_table drivers/md/dm-ioctl.c:1602 [inline] table_load+0x27c/0x764 drivers/md/dm-ioctl.c:1645 ctl_ioctl drivers/md/dm-ioctl.c:2221 [inline] dm_ctl_ioctl+0x884/0xbbc drivers/md/dm-ioctl.c:2243 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __arm64_sys_ioctl+0x154/0x1cc fs/ioctl.c:583 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 irq event stamp: 2230 hardirqs last enabled at (2229): [] seqcount_lockdep_reader_access+0x68/0xcc include/linux/seqlock.h:75 hardirqs last disabled at (2230): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:483 softirqs last enabled at (2172): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (2172): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (2172): [] kernel_neon_begin+0x294/0x400 arch/arm64/kernel/fpsimd.c:1924 softirqs last disabled at (2170): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (2170): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (2170): [] kernel_neon_begin+0x11c/0x400 arch/arm64/kernel/fpsimd.c:1883 ---[ end trace 0000000000000000 ]--- device-mapper: table: 248:0: cache: could not allocate discard bitset (-ENOMEM) device-mapper: ioctl: error adding target to table