REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers ================================================================== BUG: KASAN: user-memory-access in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: user-memory-access in test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] BUG: KASAN: user-memory-access in bit_spin_lock include/linux/bit_spinlock.h:27 [inline] BUG: KASAN: user-memory-access in zram_slot_lock+0x78/0x174 drivers/block/zram/zram_drv.c:67 Write of size 8 at addr 0000000000004128 by task syz-executor130/5968 CPU: 0 PID: 5968 Comm: syz-executor130 Not tainted 6.4.0-rc2-syzkaller-gf1fcbaa18b28 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 print_report+0xe4/0x514 mm/kasan/report.c:465 kasan_report+0xd4/0x130 mm/kasan/report.c:572 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:187 __kasan_check_write+0x20/0x30 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] bit_spin_lock include/linux/bit_spinlock.h:27 [inline] zram_slot_lock+0x78/0x174 drivers/block/zram/zram_drv.c:67 zram_read_page drivers/block/zram/zram_drv.c:1362 [inline] zram_bvec_read drivers/block/zram/zram_drv.c:1409 [inline] zram_bio_read drivers/block/zram/zram_drv.c:1883 [inline] zram_submit_bio+0x2e8/0x24c0 drivers/block/zram/zram_drv.c:1933 __submit_bio+0x1d0/0x2b0 block/blk-core.c:598 __submit_bio_noacct block/blk-core.c:641 [inline] submit_bio_noacct_nocheck+0x3bc/0xb48 block/blk-core.c:704 submit_bio_noacct+0xce0/0x1648 block/blk-core.c:801 submit_bio+0x230/0x378 block/blk-core.c:834 submit_bh_wbc+0x398/0x468 fs/buffer.c:2777 submit_bh fs/buffer.c:2782 [inline] __bread_slow fs/buffer.c:1226 [inline] __bread_gfp+0xe4/0x2ec fs/buffer.c:1419 __bread include/linux/buffer_head.h:471 [inline] journal_init+0xcd8/0x1ea8 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd50/0x2028 fs/reiserfs/super.c:2022 mount_bdev+0x26c/0x368 fs/super.c:1380 get_super_block+0x44/0x58 fs/reiserfs/super.c:2601 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1510 do_new_mount+0x25c/0x8c8 fs/namespace.c:3039 path_mount+0x590/0xe04 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x15c 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:591 ================================================================== Unable to handle kernel paging request at virtual address dfff800000000825 KASAN: probably user-memory-access in range [0x0000000000004128-0x000000000000412f] Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000825] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5968 Comm: syz-executor130 Tainted: G B 6.4.0-rc2-syzkaller-gf1fcbaa18b28 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : arch_test_and_set_bit_lock include/asm-generic/bitops/lock.h:25 [inline] pc : test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:58 [inline] pc : bit_spin_lock include/linux/bit_spinlock.h:27 [inline] pc : zram_slot_lock+0x78/0x174 drivers/block/zram/zram_drv.c:67 lr : instrument_atomic_read_write include/linux/instrumented.h:96 [inline] lr : test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] lr : bit_spin_lock include/linux/bit_spinlock.h:27 [inline] lr : zram_slot_lock+0x78/0x174 drivers/block/zram/zram_drv.c:67 sp : ffff80001e647010 x29: ffff80001e647010 x28: ffff0000cd488400 x27: 0000000000000000 x26: 1fffe00019a91080 x25: 1fffe00018de06f1 x24: 0000000000002000 x23: 0000000000000825 x22: dfff800000000000 x21: 0000000000001000 x20: ffff0000c6f03788 x19: 0000000000004128 x18: ffff0001b423ffa8 x17: 0000000000000000 x16: ffff80001237d770 x15: 0000000000000002 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000001 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001e646818 x4 : ffff800015f8e880 x3 : ffff8000081b79c8 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: instrument_atomic_read_write include/linux/instrumented.h:96 [inline] test_and_set_bit_lock include/asm-generic/bitops/instrumented-lock.h:57 [inline] bit_spin_lock include/linux/bit_spinlock.h:27 [inline] zram_slot_lock+0x78/0x174 drivers/block/zram/zram_drv.c:67 zram_read_page drivers/block/zram/zram_drv.c:1362 [inline] zram_bvec_read drivers/block/zram/zram_drv.c:1409 [inline] zram_bio_read drivers/block/zram/zram_drv.c:1883 [inline] zram_submit_bio+0x2e8/0x24c0 drivers/block/zram/zram_drv.c:1933 __submit_bio+0x1d0/0x2b0 block/blk-core.c:598 __submit_bio_noacct block/blk-core.c:641 [inline] submit_bio_noacct_nocheck+0x3bc/0xb48 block/blk-core.c:704 submit_bio_noacct+0xce0/0x1648 block/blk-core.c:801 submit_bio+0x230/0x378 block/blk-core.c:834 submit_bh_wbc+0x398/0x468 fs/buffer.c:2777 submit_bh fs/buffer.c:2782 [inline] __bread_slow fs/buffer.c:1226 [inline] __bread_gfp+0xe4/0x2ec fs/buffer.c:1419 __bread include/linux/buffer_head.h:471 [inline] journal_init+0xcd8/0x1ea8 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd50/0x2028 fs/reiserfs/super.c:2022 mount_bdev+0x26c/0x368 fs/super.c:1380 get_super_block+0x44/0x58 fs/reiserfs/super.c:2601 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1510 do_new_mount+0x25c/0x8c8 fs/namespace.c:3039 path_mount+0x590/0xe04 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x15c 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:591 Code: d343fe99 aa1303e0 52800101 97159b11 (38766ae8) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: d343fe99 lsr x25, x20, #3 4: aa1303e0 mov x0, x19 8: 52800101 mov w1, #0x8 // #8 c: 97159b11 bl 0xfffffffffc566c50 * 10: 38766ae8 ldrb w8, [x23, x22] <-- trapping instruction