loop0: detected capacity change from 0 to 32768 JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. Unable to handle kernel paging request at virtual address dfff800000000001 KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] 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 [dfff800000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 6992 Comm: syz.0.15 Not tainted 6.12.0-syzkaller-01402-gd8d78a90e7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ocfs2_find_dir_space_id fs/ocfs2/dir.c:3407 [inline] pc : ocfs2_prepare_dir_for_insert+0x2a30/0x4dec fs/ocfs2/dir.c:4271 lr : ocfs2_find_dir_space_id fs/ocfs2/dir.c:3370 [inline] lr : ocfs2_prepare_dir_for_insert+0x286c/0x4dec fs/ocfs2/dir.c:4271 sp : ffff80009d486580 x29: ffff80009d486e20 x28: ffff80009d486e80 x27: dfff800000000000 x26: dfff800000000000 x25: ffff80009d486d80 x24: ffff0000de15a4f8 x23: 0000000000000010 x22: 000000000000001c x21: ffff0000ccbc4000 x20: 0000000000000009 x19: 0000000000000000 x18: ffff80009d486560 x17: 000000000001b4e6 x16: ffff80008aa4ebc8 x15: 0000000000000001 x14: 1fffe0001bc2b4a9 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001bc2b4aa x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000001 x7 : 0000000000000000 x6 : ffff80009d486d80 x5 : ffff80009d487480 x4 : 0000000000000000 x3 : ffff800082067788 x2 : 0000000000000000 x1 : 0000000000000008 x0 : 0000000000000008 Call trace: ocfs2_prepare_dir_for_insert+0x2a30/0x4dec fs/ocfs2/dir.c:4271 (P) ocfs2_find_dir_space_id fs/ocfs2/dir.c:3370 [inline] (L) ocfs2_prepare_dir_for_insert+0x286c/0x4dec fs/ocfs2/dir.c:4271 (L) __ocfs2_prepare_orphan_dir+0x14c/0x300 fs/ocfs2/namei.c:2175 ocfs2_prepare_orphan_dir+0x178/0x460 fs/ocfs2/namei.c:2220 ocfs2_rename+0x2080/0x370c fs/ocfs2/namei.c:1458 vfs_rename+0x9bc/0xc84 fs/namei.c:5067 do_renameat2+0x9c8/0xe40 fs/namei.c:5224 __do_sys_renameat2 fs/namei.c:5258 [inline] __se_sys_renameat2 fs/namei.c:5255 [inline] __arm64_sys_renameat2+0xd8/0xf4 fs/namei.c:5255 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: 91002674 d343fc08 f940e7f9 f940f7f8 (38fa6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 91002674 add x20, x19, #0x9 4: d343fc08 lsr x8, x0, #3 8: f940e7f9 ldr x25, [sp, #456] c: f940f7f8 ldr x24, [sp, #488] * 10: 38fa6908 ldrsb w8, [x8, x26] <-- trapping instruction