loop0: detected capacity change from 0 to 32768 XFS: ikeep mount option is deprecated. xfs: Unknown parameter 'dont_measure' mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium wlan1: No legacy rates in association response loop0: detected capacity change from 0 to 32768 loop0: detected capacity change from 0 to 32768 lmLogOpen: exit(-6) jfs_dirty_inode called on read-only volume Is remount racy? ERROR: (device loop0): txBegin: read-only filesystem ERROR: (device loop0): remounting filesystem as read-only jfs_dirty_inode called on read-only volume Is remount racy? jfs_rename did not expect dtDelete to return rc = -2 ERROR: (device (efault)): jfs_rename: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00173-g0c7cae12f67c #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:sb_rdonly include/linux/fs.h:2363 [inline] RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline] RIP: 0010:jfs_error+0x15b/0x300 fs/jfs/super.c:98 Code: 08 48 c7 c7 40 16 83 8c 48 89 74 24 08 4c 89 f9 e8 da e1 cc fd 4d 8d 65 50 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 d6 51 d3 fe 49 8b 1c 24 48 89 de RSP: 0018:ffffc9000d3cf6e0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 8c1ed954ee9ed400 RDX: ffffc9000e0aa000 RSI: 00000000000033c5 RDI: 00000000000033c6 RBP: ffffc9000d3cf7f0 R08: ffffffff81a2a3dc R09: 1ffff11003f847d2 R10: dffffc0000000000 R11: ffffed1003f847d3 R12: 0000000000000050 R13: 0000000000000000 R14: 1ffff92001a79ee4 R15: 000000000000000a FS: 00007f668e2456c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f47cf795ed8 CR3: 0000000042fb4000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_rename+0xff8/0x1bf0 fs/jfs/namei.c:1243 vfs_rename+0xbce/0xf10 fs/namei.c:5086 do_renameat2+0xc8d/0x1290 fs/namei.c:5235 __do_sys_renameat2 fs/namei.c:5269 [inline] __se_sys_renameat2 fs/namei.c:5266 [inline] __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5266 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f668d38d169 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:00007f668e245038 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007f668d5a5fa0 RCX: 00007f668d38d169 RDX: ffffffffffffff9c RSI: 0000200000000580 RDI: ffffffffffffff9c RBP: 00007f668d40e990 R08: 0000000000000000 R09: 0000000000000000 R10: 00002000000005c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f668d5a5fa0 R15: 00007ffd6b929238 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sb_rdonly include/linux/fs.h:2363 [inline] RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline] RIP: 0010:jfs_error+0x15b/0x300 fs/jfs/super.c:98 Code: 08 48 c7 c7 40 16 83 8c 48 89 74 24 08 4c 89 f9 e8 da e1 cc fd 4d 8d 65 50 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 07 00 74 08 4c 89 e7 e8 d6 51 d3 fe 49 8b 1c 24 48 89 de RSP: 0018:ffffc9000d3cf6e0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 8c1ed954ee9ed400 RDX: ffffc9000e0aa000 RSI: 00000000000033c5 RDI: 00000000000033c6 RBP: ffffc9000d3cf7f0 R08: ffffffff81a2a3dc R09: 1ffff11003f847d2 R10: dffffc0000000000 R11: ffffed1003f847d3 R12: 0000000000000050 R13: 0000000000000000 R14: 1ffff92001a79ee4 R15: 000000000000000a FS: 00007f668e2456c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f66813ff800 CR3: 0000000042fb4000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 48 c7 or %cl,-0x39(%rax) 3: c7 40 16 83 8c 48 89 movl $0x89488c83,0x16(%rax) a: 74 24 je 0x30 c: 08 4c 89 f9 or %cl,-0x7(%rcx,%rcx,4) 10: e8 da e1 cc fd call 0xfdcce1ef 15: 4d 8d 65 50 lea 0x50(%r13),%r12 19: 4d 89 e7 mov %r12,%r15 1c: 49 c1 ef 03 shr $0x3,%r15 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 80 3c 07 00 cmpb $0x0,(%r15,%rax,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 d6 51 d3 fe call 0xfed3520f 39: 49 8b 1c 24 mov (%r12),%rbx 3d: 48 89 de mov %rbx,%rsi