> * syzbot <syzbot+3bca0d9eb36e75bc36ed@xxxxxxxxxxxxxxxxxxxxxxxxx> [240827 13:28]: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: 94ede2a3e913 profiling: remove stale percpu flip buffer va.. >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=122f6d9d980000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=8b0cca2f3880513d >> dashboard link: https://syzkaller.appspot.com/bug?extid=3bca0d9eb36e75bc36ed >> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 >> >> Unfortunately, I don't have any reproducer for this issue yet. >> >> Downloadable assets: >> disk image: https://storage.googleapis.com/syzbot-assets/e10dde6d5041/disk-94ede2a3.raw.xz >> vmlinux: https://storage.googleapis.com/syzbot-assets/3bda8d01811d/vmlinux-94ede2a3.xz >> kernel image: https://storage.googleapis.com/syzbot-assets/653dc61d9ae6/bzImage-94ede2a3.xz >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+3bca0d9eb36e75bc36ed@xxxxxxxxxxxxxxxxxxxxxxxxx >> >> kernel tried to execute NX-protected page - exploit attempt? (uid: 0) >> BUG: unable to handle page fault for address: ffffea000169a5c0 >> #PF: supervisor instruction fetch in kernel mode >> #PF: error_code(0x0011) - permissions violation >> PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3 >> Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI >> CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0 >> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 >> RIP: 0010:0xffffea000169a5c0 >> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00 >> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286 >> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000 >> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120 >> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98 >> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600 >> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8 >> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0 >> Call Trace: >> <TASK> >> mmap_region+0x1891/0x2090 mm/mmap.c:3058 >> do_mmap+0x8f9/0x1010 mm/mmap.c:1468 >> vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 >> ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514 >> do_syscall_x64 arch/x86/entry/common.c:52 [inline] >> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 >> entry_SYSCALL_64_after_hwframe+0x77/0x7f >> RIP: 0033:0x7f3200977299 >> 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:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 >> RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299 >> RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000 >> RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000 >> R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000 >> R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8 >> </TASK> >> Modules linked in: >> CR2: ffffea000169a5c0 >> ---[ end trace 0000000000000000 ]--- >> RIP: 0010:0xffffea000169a5c0 >> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00 >> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286 >> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000 >> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120 >> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98 >> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600 >> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8 >> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0 >> >> >> --- >> This report is generated by a bot. It may contain errors. >> See https://goo.gl/tpsmEJ for more information about syzbot. >> syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. >> >> syzbot will keep track of this issue. See: >> https://goo.gl/tpsmEJ#status for how to communicate with syzbot. >> >> If the report is already addressed, let syzbot know by replying with: >> #syz fix: exact-commit-title > > #syz test: git://git.infradead.org/users/jedix/linux-maple.git 71e79d60d610967946f5b5a9fe12dd239216ac39 This crash does not have a reproducer. I cannot test it. > >> >> If you want to overwrite report's subsystems, reply with: >> #syz set subsystems: new-subsystem >> (See the list of subsystem names on the web dashboard) >> >> If the report is a duplicate of another one, reply with: >> #syz dup: exact-subject-of-another-report >> >> If you want to undo deduplication, reply with: >> #syz undup >>
