UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list ------------[ cut here ]------------ WARNING: CPU: 3 PID: 5288 at drivers/tty/serial/serial_core.c:625 uart_write+0x2bf/0x3e0 drivers/tty/serial/serial_core.c:625 Modules linked in: CPU: 3 PID: 5288 Comm: syz-executor.0 Not tainted 6.10.0-rc2-syzkaller-00022-g32f88d65f01b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:uart_write+0x2bf/0x3e0 drivers/tty/serial/serial_core.c:625 Code: 6b fc e9 4e ff ff ff e8 3f 1e 91 fc 90 0f 0b 90 49 c7 c4 d2 ff ff ff e9 39 ff ff ff e8 2a 1e 91 fc 45 31 ff e8 22 1e 91 fc 90 <0f> 0b 90 48 85 ed 74 8c e8 14 1e 91 fc 4c 8d a5 08 01 00 00 4c 89 RSP: 0018:ffffc90003a8fae8 EFLAGS: 00010083 RAX: 000000000000855e RBX: ffff88801f7b0be8 RCX: ffffc900047f9000 RDX: 0000000000040000 RSI: ffffffff84fcc6ce RDI: ffff88801f7b0f48 RBP: ffffffff94dddf60 R08: 0000000000000001 R09: fffff52000751f4b R10: 0000000000000003 R11: ffffffff9394b608 R12: 0000000000000001 R13: 000000000000017a R14: ffff88802c81c001 R15: 0000000000000287 FS: 00007fd868f2d6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d24000 CR3: 000000002af6e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ppp_async_push+0x89e/0x1740 drivers/net/ppp/ppp_async.c:666 ppp_async_send+0xe5/0x120 drivers/net/ppp/ppp_async.c:634 __ppp_channel_push+0xe5/0x230 drivers/net/ppp/ppp_generic.c:2150 ppp_channel_push+0x1c2/0x250 drivers/net/ppp/ppp_generic.c:2177 ppp_write+0x236/0x2e0 drivers/net/ppp/ppp_generic.c:525 vfs_write+0x29a/0x1140 fs/read_write.c:588 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd86827cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd868f2d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd8683abf80 RCX: 00007fd86827cee9 RDX: 00000000000000b9 RSI: 0000000020000540 RDI: 0000000000000005 RBP: 00007fd8682c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd8683abf80 R15: 00007fffdf40f7a8