SYZFAIL: netlink_send_ext: short netlink write

Status: auto-obsoleted due to no activity on 2025/01/09 14:03
Reported-by: syzbot+5d649188ff274ae8ddf8@syzkaller.appspotmail.com
First crash: 762d, last: 672d
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 SYZFAIL: netlink_send_ext: short netlink write -1 syz error 29 1793d 1999d 0/1 upstream: reported syz repro on 2021/02/22 17:18
android-6-1 SYZFAIL: netlink_send_ext: short netlink write -1 1 639d 639d 0/2 auto-obsoleted due to no activity on 2025/02/11 23:46
android-5-10 SYZFAIL: netlink_send_ext: short netlink write (2) -1 2 460d 526d 0/2 auto-obsoleted due to no activity on 2025/08/09 13:16
android-54 SYZFAIL: netlink_send_ext: short netlink write -1 syz 15 460d 2000d 0/2 upstream: reported syz repro on 2021/02/22 10:25
linux-4.14 SYZFAIL: netlink_send_ext: short netlink write -1 syz error 40 1596d 2000d 0/1 upstream: reported syz repro on 2021/02/21 20:56
android-5-15 SYZFAIL: netlink_send_ext: short netlink write -1 16 483d 759d 0/2 auto-obsoleted due to no activity on 2025/07/18 02:45

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: repeatedly failed to execute the program
proc=2 req=3565 state=1 status=9 (errno 11: Resource temporarily unavailable)

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/11 13:58 android13-5.10-lts e5e5644ea27f cd942402 .config console log report info ci2-android-5-10 SYZFAIL: netlink_send_ext: short netlink write
2024/08/14 18:02 android13-5.10-lts 0890c03b8b7d e6b88e20 .config console log report info 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.