syzbot


SYZFAIL: netlink_send_ext: short netlink write

Status: premoderation: reported on 2024/07/14 09:22
Reported-by: syzbot+5d649188ff274ae8ddf8@syzkaller.appspotmail.com
First crash: 76d, last: 45d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 SYZFAIL: netlink_send_ext: short netlink write syz error 29 1108d 1314d 0/1 upstream: reported syz repro on 2021/02/22 17:18
android-54 SYZFAIL: netlink_send_ext: short netlink write syz 12 28d 1314d 0/2 upstream: reported syz repro on 2021/02/22 10:25
linux-4.14 SYZFAIL: netlink_send_ext: short netlink write syz error 40 911d 1314d 0/1 upstream: reported syz repro on 2021/02/21 20:56
android-5-15 SYZFAIL: netlink_send_ext: short netlink write 9 19d 74d 0/2 premoderation: reported on 2024/07/16 14:39

Sample crash report:
SYZFAIL: netlink_send_ext: short netlink write
wrote=-1, want=40 (errno 13: Permission denied)
loop exited with status 67
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: open(/proc/self/ns/net) failed
 (errno 13: Permission denied)
loop exited with status 67
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: mmap of data segment failed
want 0x20000000, got 0xffffffffffffffff (errno 13: Permission denied)
SYZFAIL: repeatedly failed to execute the program
proc=0 req=35 state=1 status=67 (errno 9: Bad file descriptor)

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/14 18:02 android13-5.10-lts 0890c03b8b7d e6b88e20 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 SYZFAIL: netlink_send_ext: short netlink write
2024/07/16 08:28 android13-5.10-lts 3feee789f446 e8709b21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 SYZFAIL: netlink_send_ext: short netlink write
2024/07/14 09:21 android13-5.10-lts 3feee789f446 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 SYZFAIL: netlink_send_ext: short netlink write
* Struck through repros no longer work on HEAD.