loop0: detected capacity change from 0 to 4096 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ntfs3(loop0): Different NTFS sector size (1024) and media sector size (512). ntfs3(loop0): Failed to load $Extend (-22). ntfs3(loop0): Failed to initialize $Extend. overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. evm: overlay not supported BUG: unable to handle page fault for address: fffff52101aafd3f #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 5ffcc067 P4D 5ffcc067 PUD 0 Oops: Oops: 0002 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:stack_trace_save+0xa8/0xe0 kernel/stacktrace.c:123 Code: 00 00 00 00 65 48 8b 14 25 08 40 75 92 48 c7 c7 70 aa ac 81 48 89 c6 31 c9 e8 a4 ec bb ff 8b 44 24 30 48 c7 04 24 0e 36 e0 45 <4a> c7 04 33 00 00 00 00 42 c7 44 33 08 00 00 00 00 65 48 8b 0d df RSP: 0018:ffffc9000d57ea00 EFLAGS: 00010292 RAX: 0000000000000013 RBX: 1ffff92001aafd40 RCX: ee1a1993d8df1800 RDX: 0000000000000000 RSI: ffffffff8d93404f RDI: ffff88801e75a440 RBP: ffffc9000d57ea90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff81ce8306 R12: ffff88801a042000 R13: ffff8880432bf000 R14: dffffc00ffffffff R15: ffffc9000d57eaa0 FS: 00007fea979e46c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52101aafd3f CR3: 000000003f927000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4341 [inline] __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4353 kmalloc_noprof include/linux/slab.h:909 [inline] kmalloc_array_noprof include/linux/slab.h:948 [inline] ntfs_compress_write+0x2b5/0x1f20 fs/ntfs3/file.c:1022 ntfs_file_write_iter+0x6be/0x820 fs/ntfs3/file.c:1286 iter_file_splice_write+0x937/0x1000 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0xfe/0x160 fs/splice.c:1158 splice_direct_to_actor+0x5a5/0xcc0 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x181/0x270 fs/splice.c:1227 ovl_copy_up_file+0x4bb/0x6a0 fs/overlayfs/copy_up.c:349 ovl_copy_up_data+0x1fe/0x280 fs/overlayfs/copy_up.c:654 ovl_copy_up_workdir fs/overlayfs/copy_up.c:796 [inline] ovl_do_copy_up fs/overlayfs/copy_up.c:1001 [inline] ovl_copy_up_one fs/overlayfs/copy_up.c:1202 [inline] ovl_copy_up_flags+0x120b/0x2fb0 fs/overlayfs/copy_up.c:1257 ovl_setattr+0x10b/0x550 fs/overlayfs/inode.c:40 notify_change+0xb33/0xe40 fs/attr.c:552 chmod_common+0x24f/0x3f0 fs/open.c:644 do_fchmodat+0x12d/0x200 fs/open.c:690 __do_sys_chmod fs/open.c:714 [inline] __se_sys_chmod fs/open.c:712 [inline] __x64_sys_chmod+0x62/0x70 fs/open.c:712 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fea96b8e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fea979e4038 EFLAGS: 00000246 ORIG_RAX: 000000000000005a RAX: ffffffffffffffda RBX: 00007fea96db5fa0 RCX: 00007fea96b8e969 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000200000000100 RBP: 00007fea96c10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fea96db5fa0 R15: 00007ffc3d047238 Modules linked in: CR2: fffff52101aafd3f ---[ end trace 0000000000000000 ]--- RIP: 0010:stack_trace_save+0xa8/0xe0 kernel/stacktrace.c:123 Code: 00 00 00 00 65 48 8b 14 25 08 40 75 92 48 c7 c7 70 aa ac 81 48 89 c6 31 c9 e8 a4 ec bb ff 8b 44 24 30 48 c7 04 24 0e 36 e0 45 <4a> c7 04 33 00 00 00 00 42 c7 44 33 08 00 00 00 00 65 48 8b 0d df RSP: 0018:ffffc9000d57ea00 EFLAGS: 00010292 RAX: 0000000000000013 RBX: 1ffff92001aafd40 RCX: ee1a1993d8df1800 RDX: 0000000000000000 RSI: ffffffff8d93404f RDI: ffff88801e75a440 RBP: ffffc9000d57ea90 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff81ce8306 R12: ffff88801a042000 R13: ffff8880432bf000 R14: dffffc00ffffffff R15: ffffc9000d57eaa0 FS: 00007fea979e46c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52101aafd3f CR3: 000000003f927000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 65 48 8b 14 25 08 40 mov %gs:0xffffffff92754008,%rdx b: 75 92 d: 48 c7 c7 70 aa ac 81 mov $0xffffffff81acaa70,%rdi 14: 48 89 c6 mov %rax,%rsi 17: 31 c9 xor %ecx,%ecx 19: e8 a4 ec bb ff call 0xffbbecc2 1e: 8b 44 24 30 mov 0x30(%rsp),%eax 22: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp) 29: 45 * 2a: 4a c7 04 33 00 00 00 movq $0x0,(%rbx,%r14,1) <-- trapping instruction 31: 00 32: 42 c7 44 33 08 00 00 movl $0x0,0x8(%rbx,%r14,1) 39: 00 00 3b: 65 gs 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 0d .byte 0xd 3f: df .byte 0xdf