[701.043443][7] =============================================================================
[701.043491][7] BUG kmalloc-512 (Tainted: G W ): Poison overwritten
[701.043515][7] -----------------------------------------------------------------------------
[701.043515][7]
[701.043550][7] INFO: 0xe411ec00-0xe411ec92. First byte 0x87 instead of 0x6b
[701.043588][7] INFO: Allocated in alloc_buffer+0x28/0x14c age=31044 cpu=4 pid=103
[701.043617][7] __kmalloc+0xe8/0x2b8
[701.043644][7] alloc_buffer+0x28/0x14c
[701.043669][7] __bufio_new+0x74/0x24c
[701.043693][7] dm_bufio_prefetch+0x94/0x140
[701.043720][7] verity_prefetch_io+0x140/0x158
[701.043747][7] process_one_work+0x260/0x478
[701.043772][7] worker_thread+0x2c4/0x408
[701.043798][7] kthread+0xf8/0x10c
[701.043825][7] ret_from_fork+0x14/0x20
[701.043854][7] INFO: Freed in free_buffer+0xa4/0xb0 age=24255 cpu=6 pid=80
[701.043880][7] kfree+0x238/0x28c
[701.043906][7] free_buffer+0xa4/0xb0
[701.043930][7] __free_buffer_wake+0x28/0x60
[701.043954][7] __cleanup_old_buffer+0x80/0x9c
[701.043979][7] work_fn+0x80/0xcc
[701.044004][7] process_one_work+0x260/0x478
[701.044029][7] worker_thread+0x2c4/0x408
[701.044054][7] kthread+0xf8/0x10c
[701.044079][7] ret_from_fork+0x14/0x20
[701.044104][7] INFO: Slab 0xec797e00 objects=23 used=23 fp=0x (null) flags=0x4080
[701.044129][7] INFO: Object 0xe411ec00 @offset=11264 fp=0xe411c580
[701.044129][7]
[701.044165][7] Bytes b4 e411ebf0: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044190][7] Object e411ec00: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044215][7] Object e411ec10: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044239][7] Object e411ec20: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044264][7] Object e411ec30: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044288][7] Object e411ec40: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044313][7] Object e411ec50: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044338][7] Object e411ec60: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044363][7] Object e411ec70: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044388][7] Object e411ec80: 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 87 ................
[701.044412][7] Object e411ec90: 87 87 87 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ...kkkkkkkkkkkkk
[701.044437][7] Object e411eca0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044462][7] Object e411ecb0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044487][7] Object e411ecc0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044511][7] Object e411ecd0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044536][7] Object e411ece0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044561][7] Object e411ecf0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044585][7] Object e411ed00: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044610][7] Object e411ed10: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044634][7] Object e411ed20: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044659][7] Object e411ed30: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044684][7] Object e411ed40: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044709][7] Object e411ed50: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044733][7] Object e411ed60: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044758][7] Object e411ed70: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044783][7] Object e411ed80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044807][7] Object e411ed90: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044831][7] Object e411eda0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044856][7] Object e411edb0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044881][7] Object e411edc0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044906][7] Object e411edd0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044930][7] Object e411ede0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[701.044955][7] Object e411edf0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
[701.044980][7] Redzone e411ee00: bb bb bb bb ....
[701.045005][7] Padding e411eea8: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ
[701.045030][7] Padding e411eeb8: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
[701.045505][7] Kernel panic - not syncing: object poison overwritten
[701.045505][7]
[701.045540][7] CPU: 7 PID: 6578 Comm: sh Tainted: G B W 3.18.31-g6258e9b-dirty #34
[701.045572][7] [<c0016fb8>] (unwind_backtrace) from [<c0013760>] (show_stack+0x20/0x24)
[701.045603][7] [<c0013760>] (show_stack) from [<c0f64068>] (dump_stack+0x9c/0xd4)
[701.045635][7] [<c0f64068>] (dump_stack) from [<c0f5f7a8>] (panic+0x120/0x388)
[701.045668][7] [<c0f5f7a8>] (panic) from [<c014d410>] (check_bytes_and_report+0x98/0xc8)
[701.045700][7] [<c014d410>] (check_bytes_and_report) from [<c014dc88>] (check_object+0x134/0x218)
[701.045733][7] [<c014dc88>] (check_object) from [<c0f618c8>] (alloc_debug_processing+0x8c/0x15c)
[701.045765][7] [<c0f618c8>] (alloc_debug_processing) from [<c0f61d94>] (__slab_alloc.constprop.8+0x3fc/0x458)
[701.045797][7] [<c0f61d94>] (__slab_alloc.constprop.8) from [<c014e968>] (__kmalloc+0xe8/0x2b8)
[701.045829][7] [<c014e968>] (__kmalloc) from [<c01a305c>] (load_elf_binary+0xf8/0x101c)
[701.045860][7] [<c01a305c>] (load_elf_binary) from [<c01603d0>] (search_binary_handler+0x84/0x1cc)
[701.045892][7] [<c01603d0>] (search_binary_handler) from [<c0160c14>] (do_execve+0x360/0x5bc)
[701.045922][7] [<c0160c14>] (do_execve) from [<c0161080>] (SyS_execve+0x2c/0x30)
[701.045953][7] [<c0161080>] (SyS_execve) from [<c000f300>] (ret_fast_syscall+0x0/0x50)
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