• LK v4.17.x - __xfrm_decode_session - soft lockup

    __xfrm_decode_session - soft lockup posted & found by zer0day tl;dr Got from syzkaller & Found in LK v4.17.0-rc5. Call Trace (Dump) Here’s a syzkaller’s report. watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor1:6644] Modules linked in: irq event stamp: 54949 hardirqs last enabled at (54948): [<ffffffff84e00a60>] restore_regs_and_return_to_kernel+0x0/0x30 hardirqs...


  • LK v4.17.x - __xfrm_policy_check - general page fault

    __xfrm_policy_check - general page fault posted & found by zer0day tl;dr Found on LK v4.17.0+. leaded to null-dereference. Not analyzed yet… Call Trace (Dump) Here’s a dmesg & Call Trace. [ 758.398101] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 758.403122] general protection fault: 0000...


  • LK v4.17.x - set_precision - warn

    set_precision - warning posted & found by zer0day tl;dr Got from syzkaller & Found in LK v4.17.0+. Call Trace (Dump) Here’s a dmesg. ... precision 1047645 too large WARNING: CPU: 0 PID: 12208 at lib/vsprintf.c:2164 set_precision+0xb8/0xe0 lib/vsprintf.c:2164 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 12208 Comm:...


  • LK v4.17.x - pcpu_create_chunk - memory leak

    pcpu_create_chunk - memory leak posted & found by zer0day tl;dr Found on LK v4.17.x. Details are Later… kmemleak message unreferenced object 0xffffc90000538000 (size 8192): comm "poc", pid 10557, jiffies 4294785036 (age 9.722s) hex dump (first 32 bytes): 00 04 00 00 00 00 00 00 00 04 00 00 00...


  • LK v4.17.x - create_filter - memory leak

    create_filter - memory leak posted & found by zer0day tl;dr It’s been a while. I’ve been busy these days because of school stuffs… :( Found on LK v4.17.x. Details are Later… kmemleak message unreferenced object 0xffff880069abee18 (size 8): comm "poc", pid 14081, jiffies 4294976277 (age 10.671s) hex dump (first 8...