Warning: Permanently added '[localhost]:15565' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 145.043647][ T3009] ================================================================== [ 145.051761][ T3009] BUG: KASAN: invalid-access in __packet_get_status+0x70/0xe0 [ 145.053442][ T3009] Read at addr f7ff000006e00000 by task dhcpcd/3009 [ 145.054242][ T3009] Pointer tag: [f7], memory tag: [f0] [ 145.055068][ T3009] [ 145.056836][ T3009] CPU: 0 PID: 3009 Comm: dhcpcd Not tainted 6.4.0-rc2-syzkaller-00163-g2d1bcbc6cd70 #0 [ 145.057911][ T3009] Hardware name: linux,dummy-virt (DT) [ 145.059059][ T3009] Call trace: [ 145.059723][ T3009] dump_backtrace+0x94/0xec [ 145.060427][ T3009] show_stack+0x18/0x24 [ 145.061228][ T3009] dump_stack_lvl+0x48/0x60 [ 145.061906][ T3009] print_report+0xd8/0x5f4 [ 145.062455][ T3009] kasan_report+0x7c/0x9c [ 145.063300][ T3009] __do_kernel_fault+0x174/0x1c0 [ 145.063906][ T3009] do_tag_check_fault+0x78/0x8c [ 145.064515][ T3009] do_mem_abort+0x44/0x94 [ 145.065060][ T3009] el1_abort+0x40/0x60 [ 145.065904][ T3009] el1h_64_sync_handler+0xd8/0xe4 [ 145.066563][ T3009] el1h_64_sync+0x64/0x68 [ 145.067095][ T3009] __packet_get_status+0x70/0xe0 [ 145.067621][ T3009] tpacket_rcv+0x29c/0xbbc [ 145.068326][ T3009] dev_queue_xmit_nit+0x110/0x2c8 [ 145.068991][ T3009] dev_hard_start_xmit+0x78/0x148 [ 145.069525][ T3009] sch_direct_xmit+0x90/0x1e4 [ 145.070197][ T3009] __dev_queue_xmit+0x468/0xd40 [ 145.070823][ T3009] packet_xmit+0xd8/0x14c [ 145.071336][ T3009] packet_sendmsg+0xeec/0x13d0 [ 145.072066][ T3009] sock_sendmsg+0x54/0x60 [ 145.072763][ T3009] sock_write_iter+0x94/0xf0 [ 145.073319][ T3009] do_iter_readv_writev+0xb8/0x144 [ 145.074204][ T3009] do_iter_write+0x94/0x214 [ 145.074787][ T3009] vfs_writev+0xac/0x170 [ 145.075324][ T3009] do_writev+0x118/0x130 [ 145.076023][ T3009] __arm64_sys_writev+0x20/0x2c [ 145.076765][ T3009] invoke_syscall+0x48/0x114 [ 145.077317][ T3009] el0_svc_common.constprop.0+0xcc/0xec [ 145.078263][ T3009] do_el0_svc+0x38/0xa4 [ 145.078793][ T3009] el0_svc+0x2c/0xb0 [ 145.079322][ T3009] el0t_64_sync_handler+0xb8/0xbc [ 145.080272][ T3009] el0t_64_sync+0x19c/0x1a0 [ 145.080990][ T3009] [ 145.081462][ T3009] The buggy address belongs to the physical page: [ 145.082864][ T3009] page:0000000070ed64fe refcount:9 mapcount:1 mapping:0000000000000000 index:0x0 pfn:0x46e00 [ 145.084451][ T3009] head:0000000070ed64fe order:3 entire_mapcount:0 nr_pages_mapped:8 pincount:0 [ 145.085746][ T3009] flags: 0x1ffc20006010000(head|arch_2|arch_3|node=0|zone=0|lastcpupid=0x7ff|kasantag=0x8) [ 145.087068][ T3009] page_type: 0x0() [ 145.088189][ T3009] raw: 01ffc20006010000 0000000000000000 dead000000000122 0000000000000000 [ 145.089268][ T3009] raw: 0000000000000000 0000000000000000 0000000900000000 0000000000000000 [ 145.090080][ T3009] page dumped because: kasan: bad access detected [ 145.090985][ T3009] [ 145.091336][ T3009] Memory state around the buggy address: [ 145.092049][ T3009] ffff000006dffe00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 145.093189][ T3009] ffff000006dfff00: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 [ 145.093885][ T3009] >ffff000006e00000: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 [ 145.094713][ T3009] ^ [ 145.095471][ T3009] ffff000006e00100: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 [ 145.096483][ T3009] ffff000006e00200: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 [ 145.097159][ T3009] ================================================================== [ 145.098866][ T3009] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program VM DIAGNOSIS: 12:31:56 Registers: info registers vcpu 0 PC=ffff800009846ed0 X00=ffff80000a634ce8 X01=000000000000000a X02=0000000000000000 X03=0000000000000000 X04=ffff800009fcd93d X05=0000000000000001 X06=000000000000005d X07=2020202020202020 X08=000000000000005d X09=ffff80000aa52fa0 X10=000000000000005d X11=fffffffffffcae68 X12=ffff80000aa5301d X13=ffff80000aa53028 X14=0000000000000000 X15=0000000000000020 X16=3d3d3d3d3d3d3d3d X17=3d3d3d3d3d3d3d3d X18=00000000fffffffb X19=ffff80000aa53248 X20=0000000000000000 X21=0000000000000017 X22=0000000000000000 X23=0000000000000800 X24=0000000000000000 X25=00000000000007fe X26=ffff80000aa53120 X27=ffff80000a634ce8 X28=ffff80000a51eeb0 X29=ffff80000aa53030 X30=ffff800008107f3c SP=ffff80000aa53030 PSTATE=624000c9 -ZC- EL2h BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=ffffffffffffffff:ffffffffffffffff Z01=0000000f00000054:0000000000000050 Z02=f00ff00ff00ff00f:f00ff00ff00ff00f Z03=000000000000000f:f000f000f000f000 Z04=f00ff00ff00ff00f:f00ff00ff00ff00f Z05=0000000ff0f0f0f0:0000000ff0f0f0f0 Z06=0000f00000000000:0000f00000000000 Z07=0000000000000000:0000000000000000 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff8000080d7ba4 X00=ffff00007f9d6d80 X01=ffff00007f9d6180 X02=f1ff000005c13180 X03=00000000ffffc364 X04=ffff00007ff4aaa8 X05=ffff80000800bdd0 X06=ffff80000a3b9180 X07=ffff80000a3d33e0 X08=ffff00007f9d6280 X09=0000000002b1acd3 X10=0000000000000104 X11=0000000000000002 X12=000000000000000a X13=0000000000000001 X14=0000000000000104 X15=00007c6de3655a78 X16=ffff800008008000 X17=ffff80007561d000 X18=0000000000000002 X19=ffff00007f9ce480 X20=0000000000000000 X21=ffff00007f9d0ac8 X22=ffff80000ab33920 X23=00000000000000c0 X24=0000000000000000 X25=0000000000000001 X26=ffff800008150c2c X27=ffff00007f9d05c0 X28=ffff00007f9d0580 X29=ffff80000800be30 X30=59e58000081506cc SP=ffff80000800be50 PSTATE=204000c9 --C- EL2h BTYPE=0 FPCR=00000000 FPSR=00000000 P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000 P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000 FFR=0000 Z00=2f2f2f2f2f2f2f2f:2f2f2f2f2f2f2f2f Z01=3631333733726f74:75636578652d7a79 Z02=00746f6f723d5245:5355003834373737 Z03=8000080000000000:8000080000000000 Z04=8000000000000000:0000080000000000 Z05=0000000000000000:0000000000000000 Z06=0000000000000000:0000000000000000 Z07=8020080280200802:8020080280200802 Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000 Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000 Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000 Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000 Z16=4010040140100401:4010040140100401 Z17=ff00ff0000000000:ff00ff0000000000 Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000 Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000 Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000 Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000000