Hello, syzbot found the following issue on: HEAD commit: c2bf05db6c78 Merge tag 'i2c-for-6.1-rc8' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=171883d5880000 kernel config: https://syzkaller.appspot.com/x/.config?x=979161df0e247659 dashboard link: https://syzkaller.appspot.com/bug?extid=25bdb7b1703639abd498 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fff84d880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135806a7880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/63cd45bf1d68/disk-c2bf05db.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/bafbfb42c660/vmlinux-c2bf05db.xz kernel image: https://storage.googleapis.com/syzbot-assets/9f803a721cfc/bzImage-c2bf05db.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+25bdb7b1703639abd498@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888111648000 (size 18448): comm "syz-executor148", pid 3653, jiffies 4294970435 (age 13.520s) hex dump (first 32 bytes): 85 44 7e c7 00 00 00 00 00 48 00 00 00 00 00 00 .D~......H...... 92 30 86 d2 8c 38 30 9e e7 a3 05 00 9f 09 33 bb .0...80.......3. backtrace: [<ffffffff814ee6d3>] __do_kmalloc_node mm/slab_common.c:943 [inline] [<ffffffff814ee6d3>] __kmalloc+0xb3/0x120 mm/slab_common.c:968 [<ffffffff8250c359>] kmalloc include/linux/slab.h:558 [inline] [<ffffffff8250c359>] fbcon_set_font+0x1a9/0x470 drivers/video/fbdev/core/fbcon.c:2508 [<ffffffff8262cd59>] con_font_set drivers/tty/vt/vt.c:4667 [inline] [<ffffffff8262cd59>] con_font_op+0x3a9/0x600 drivers/tty/vt/vt.c:4713 [<ffffffff82618e3d>] vt_k_ioctl drivers/tty/vt/vt_ioctl.c:474 [inline] [<ffffffff82618e3d>] vt_ioctl+0x14fd/0x1a80 drivers/tty/vt/vt_ioctl.c:752 [<ffffffff825fdaf5>] tty_ioctl+0x6d5/0xbe0 drivers/tty/tty_io.c:2771 [<ffffffff816200bc>] vfs_ioctl fs/ioctl.c:51 [inline] [<ffffffff816200bc>] __do_sys_ioctl fs/ioctl.c:870 [inline] [<ffffffff816200bc>] __se_sys_ioctl fs/ioctl.c:856 [inline] [<ffffffff816200bc>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:856 [<ffffffff8485c5e5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff8485c5e5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff888110b18000 (size 18448): comm "syz-executor148", pid 3655, jiffies 4294971001 (age 7.860s) hex dump (first 32 bytes): 85 44 7e c7 00 00 00 00 00 48 00 00 00 00 00 00 .D~......H...... 92 30 86 d2 8c 38 30 9e e7 a3 05 00 9f 09 33 bb .0...80.......3. backtrace: [<ffffffff814ee6d3>] __do_kmalloc_node mm/slab_common.c:943 [inline] [<ffffffff814ee6d3>] __kmalloc+0xb3/0x120 mm/slab_common.c:968 [<ffffffff8250c359>] kmalloc include/linux/slab.h:558 [inline] [<ffffffff8250c359>] fbcon_set_font+0x1a9/0x470 drivers/video/fbdev/core/fbcon.c:2508 [<ffffffff8262cd59>] con_font_set drivers/tty/vt/vt.c:4667 [inline] [<ffffffff8262cd59>] con_font_op+0x3a9/0x600 drivers/tty/vt/vt.c:4713 [<ffffffff82618e3d>] vt_k_ioctl drivers/tty/vt/vt_ioctl.c:474 [inline] [<ffffffff82618e3d>] vt_ioctl+0x14fd/0x1a80 drivers/tty/vt/vt_ioctl.c:752 [<ffffffff825fdaf5>] tty_ioctl+0x6d5/0xbe0 drivers/tty/tty_io.c:2771 [<ffffffff816200bc>] vfs_ioctl fs/ioctl.c:51 [inline] [<ffffffff816200bc>] __do_sys_ioctl fs/ioctl.c:870 [inline] [<ffffffff816200bc>] __se_sys_ioctl fs/ioctl.c:856 [inline] [<ffffffff816200bc>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:856 [<ffffffff8485c5e5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff8485c5e5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
