Hello, syzbot found the following issue on: HEAD commit: 741e9d668aa5 Merge tag 'scsi-misc' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=113721f1180000 kernel config: https://syzkaller.appspot.com/x/.config?x=48bb382b96e7eda7 dashboard link: https://syzkaller.appspot.com/bug?extid=8ac8b7b2292ea867a162 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7e1776e6e382/disk-741e9d66.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/69580881d554/vmlinux-741e9d66.xz kernel image: https://storage.googleapis.com/syzbot-assets/65e4047a1117/bzImage-741e9d66.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8ac8b7b2292ea867a162@xxxxxxxxxxxxxxxxxxxxxxxxx ===================================================== BUG: KMSAN: uninit-value in __bpf_strtoull+0x245/0x5b0 kernel/bpf/helpers.c:465 __bpf_strtoull+0x245/0x5b0 kernel/bpf/helpers.c:465 __bpf_strtoll kernel/bpf/helpers.c:504 [inline] ____bpf_strtol kernel/bpf/helpers.c:525 [inline] bpf_strtol+0x7c/0x270 kernel/bpf/helpers.c:519 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run96+0xb5/0xe0 kernel/bpf/core.c:2236 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_test_run+0x43e/0xc30 net/bpf/test_run.c:423 bpf_prog_test_run_xdp+0xeaa/0x1a40 net/bpf/test_run.c:1269 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4240 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5649 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __ia32_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5736 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x7a/0x84 Local variable stack created at: __bpf_prog_run96+0x45/0xe0 kernel/bpf/core.c:2236 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run_xdp include/net/xdp.h:514 [inline] bpf_test_run+0x43e/0xc30 net/bpf/test_run.c:423 CPU: 0 PID: 11097 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-11339-g741e9d668aa5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 ===================================================== --- 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 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
