[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started System Logging Service. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.149' (ECDSA) to the list of known hosts. syzkaller login: [ 146.054178][ T8210] IPVS: ftp: loaded support on port[0] = 21 executing program [ 146.140083][ T8233] ===================================================== [ 146.147176][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 146.155458][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Not tainted 5.12.0-rc6-syzkaller #0 [ 146.164434][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.174493][ T8233] Call Trace: [ 146.177789][ T8233] dump_stack+0x24c/0x2e0 [ 146.182134][ T8233] kmsan_report+0xfb/0x1e0 [ 146.186542][ T8233] __msan_warning+0x5c/0xa0 [ 146.191040][ T8233] __ethtool_get_link_ksettings+0x503/0x5a0 [ 146.197032][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 146.202308][ T8233] ? strset_cleanup_data+0x190/0x190 [ 146.207584][ T8233] ethnl_default_notify+0x432/0x1030 [ 146.212875][ T8233] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.218947][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.224312][ T8233] ethtool_notify+0x259/0x520 [ 146.230633][ T8233] dev_ethtool+0xe228/0xe7b0 [ 146.235234][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.240459][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.245674][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 146.251923][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.257245][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.261580][ T8233] sock_do_ioctl+0x477/0x700 [ 146.266876][ T8233] sock_ioctl+0x997/0xef0 [ 146.271214][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.276409][ T8233] ? sock_poll+0x690/0x690 [ 146.281083][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.285774][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.290384][ T8233] do_syscall_64+0x9f/0x140 [ 146.294910][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.300792][ T8233] RIP: 0033:0x440b69 [ 146.304694][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 146.325995][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 146.334598][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 146.342568][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 146.350555][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 146.358529][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 146.366594][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 146.374558][ T8233] [ 146.376911][ T8233] Uninit was stored to memory at: [ 146.381908][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 146.387710][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 146.393764][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 146.398789][ T8233] __msan_memcpy+0x46/0x60 [ 146.403192][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 146.408399][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 146.414301][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 146.419590][ T8233] ethnl_default_notify+0x432/0x1030 [ 146.424922][ T8233] ethtool_notify+0x259/0x520 [ 146.429599][ T8233] dev_ethtool+0xe228/0xe7b0 [ 146.434180][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.438498][ T8233] sock_do_ioctl+0x477/0x700 [ 146.443086][ T8233] sock_ioctl+0x997/0xef0 [ 146.447449][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.452128][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.456708][ T8233] do_syscall_64+0x9f/0x140 [ 146.461454][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.467348][ T8233] [ 146.469679][ T8233] Uninit was stored to memory at: [ 146.474700][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 146.481501][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 146.487966][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 146.493108][ T8233] __msan_memcpy+0x46/0x60 [ 146.497717][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 146.502972][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 146.507600][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.511961][ T8233] sock_do_ioctl+0x477/0x700 [ 146.516580][ T8233] sock_ioctl+0x997/0xef0 [ 146.521106][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.526203][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.530821][ T8233] do_syscall_64+0x9f/0x140 [ 146.535364][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.541313][ T8233] [ 146.543649][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 146.551368][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 146.555990][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 146.560602][ T8233] ===================================================== [ 146.567537][ T8233] Disabling lock debugging due to kernel taint [ 146.574950][ T8233] ===================================================== [ 146.582106][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 146.590415][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 146.601105][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.611179][ T8233] Call Trace: [ 146.614814][ T8233] dump_stack+0x24c/0x2e0 [ 146.619262][ T8233] kmsan_report+0xfb/0x1e0 [ 146.623709][ T8233] __msan_warning+0x5c/0xa0 [ 146.628232][ T8233] __ethtool_get_link_ksettings+0x510/0x5a0 [ 146.635555][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 146.641089][ T8233] ? strset_cleanup_data+0x190/0x190 [ 146.646678][ T8233] ethnl_default_notify+0x432/0x1030 [ 146.652289][ T8233] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.658565][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.663807][ T8233] ethtool_notify+0x259/0x520 [ 146.668613][ T8233] dev_ethtool+0xe228/0xe7b0 [ 146.673261][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.678522][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.683757][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 146.689596][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.694827][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.699265][ T8233] sock_do_ioctl+0x477/0x700 [ 146.703901][ T8233] sock_ioctl+0x997/0xef0 [ 146.708282][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 146.713505][ T8233] ? sock_poll+0x690/0x690 [ 146.717948][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.723127][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.727790][ T8233] do_syscall_64+0x9f/0x140 [ 146.732319][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.738240][ T8233] RIP: 0033:0x440b69 [ 146.742237][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 146.762833][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 146.771477][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 146.779553][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 146.787625][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 146.795980][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 146.804114][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 146.812122][ T8233] [ 146.814440][ T8233] Uninit was stored to memory at: [ 146.819442][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 146.825221][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 146.831238][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 146.836266][ T8233] __msan_memcpy+0x46/0x60 [ 146.840728][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 146.849449][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 146.855343][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 146.860638][ T8233] ethnl_default_notify+0x432/0x1030 [ 146.865968][ T8233] ethtool_notify+0x259/0x520 [ 146.870630][ T8233] dev_ethtool+0xe228/0xe7b0 [ 146.875239][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.879567][ T8233] sock_do_ioctl+0x477/0x700 [ 146.884180][ T8233] sock_ioctl+0x997/0xef0 [ 146.888523][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.893192][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.897770][ T8233] do_syscall_64+0x9f/0x140 [ 146.902263][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.908148][ T8233] [ 146.910466][ T8233] Uninit was stored to memory at: [ 146.915483][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 146.921196][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 146.927205][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 146.932221][ T8233] __msan_memcpy+0x46/0x60 [ 146.936726][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 146.941925][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 146.946530][ T8233] dev_ioctl+0x5a3/0x1260 [ 146.950870][ T8233] sock_do_ioctl+0x477/0x700 [ 146.955471][ T8233] sock_ioctl+0x997/0xef0 [ 146.959790][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 146.964984][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 146.970272][ T8233] do_syscall_64+0x9f/0x140 [ 146.974795][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 146.980709][ T8233] [ 146.983025][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 146.990731][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 146.995318][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 146.999916][ T8233] ===================================================== [ 147.007268][ T8233] ===================================================== [ 147.014209][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 147.022489][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 147.032658][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.042775][ T8233] Call Trace: [ 147.046254][ T8233] dump_stack+0x24c/0x2e0 [ 147.050729][ T8233] kmsan_report+0xfb/0x1e0 [ 147.055206][ T8233] __msan_warning+0x5c/0xa0 [ 147.059743][ T8233] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 147.066491][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 147.071784][ T8233] ? strset_cleanup_data+0x190/0x190 [ 147.077120][ T8233] ethnl_default_notify+0x432/0x1030 [ 147.082778][ T8233] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.088913][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.094131][ T8233] ethtool_notify+0x259/0x520 [ 147.098829][ T8233] dev_ethtool+0xe228/0xe7b0 [ 147.104112][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.109318][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.114966][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 147.121587][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.126913][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.131242][ T8233] sock_do_ioctl+0x477/0x700 [ 147.135837][ T8233] sock_ioctl+0x997/0xef0 [ 147.140338][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.145533][ T8233] ? sock_poll+0x690/0x690 [ 147.149949][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.154626][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.159217][ T8233] do_syscall_64+0x9f/0x140 [ 147.164786][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.170712][ T8233] RIP: 0033:0x440b69 [ 147.174627][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 147.194527][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 147.202942][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 147.210917][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 147.218904][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 147.226978][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 147.235215][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 147.243842][ T8233] [ 147.246162][ T8233] Uninit was stored to memory at: [ 147.251169][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 147.256915][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 147.262891][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 147.267913][ T8233] __msan_memcpy+0x46/0x60 [ 147.272369][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 147.277557][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 147.283481][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 147.288758][ T8233] ethnl_default_notify+0x432/0x1030 [ 147.294048][ T8233] ethtool_notify+0x259/0x520 [ 147.298795][ T8233] dev_ethtool+0xe228/0xe7b0 [ 147.303394][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.307724][ T8233] sock_do_ioctl+0x477/0x700 [ 147.312445][ T8233] sock_ioctl+0x997/0xef0 [ 147.316993][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.321663][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.326517][ T8233] do_syscall_64+0x9f/0x140 [ 147.331228][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.337168][ T8233] [ 147.339526][ T8233] Uninit was stored to memory at: [ 147.344926][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 147.350819][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 147.356805][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 147.361859][ T8233] __msan_memcpy+0x46/0x60 [ 147.366305][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 147.373109][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 147.377715][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.382179][ T8233] sock_do_ioctl+0x477/0x700 [ 147.386784][ T8233] sock_ioctl+0x997/0xef0 [ 147.391121][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.395920][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.400523][ T8233] do_syscall_64+0x9f/0x140 [ 147.405739][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.411622][ T8233] [ 147.413959][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 147.422355][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 147.426966][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 147.431553][ T8233] ===================================================== [ 147.438871][ T8233] ===================================================== [ 147.447654][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 147.455934][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 147.466153][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.476228][ T8233] Call Trace: [ 147.479620][ T8233] dump_stack+0x24c/0x2e0 [ 147.484016][ T8233] kmsan_report+0xfb/0x1e0 [ 147.488475][ T8233] __msan_warning+0x5c/0xa0 [ 147.493178][ T8233] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 147.499118][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 147.504430][ T8233] ? strset_cleanup_data+0x190/0x190 [ 147.509756][ T8233] ethnl_default_notify+0x432/0x1030 [ 147.515094][ T8233] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.521239][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.526463][ T8233] ethtool_notify+0x259/0x520 [ 147.531134][ T8233] dev_ethtool+0xe228/0xe7b0 [ 147.535770][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.540964][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.546240][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 147.552060][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.557278][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.561611][ T8233] sock_do_ioctl+0x477/0x700 [ 147.566411][ T8233] sock_ioctl+0x997/0xef0 [ 147.570826][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.576020][ T8233] ? sock_poll+0x690/0x690 [ 147.580978][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.585818][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.590542][ T8233] do_syscall_64+0x9f/0x140 [ 147.595074][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.602308][ T8233] RIP: 0033:0x440b69 [ 147.606492][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 147.626825][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 147.636285][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 147.644351][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 147.652368][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 147.661970][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 147.670057][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 147.678065][ T8233] [ 147.680403][ T8233] Uninit was stored to memory at: [ 147.685408][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 147.691154][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 147.697162][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 147.702203][ T8233] __msan_memcpy+0x46/0x60 [ 147.706627][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 147.711834][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 147.717721][ T8233] linkinfo_prepare_data+0x1e8/0x4b0 [ 147.722997][ T8233] ethnl_default_notify+0x432/0x1030 [ 147.728272][ T8233] ethtool_notify+0x259/0x520 [ 147.732941][ T8233] dev_ethtool+0xe228/0xe7b0 [ 147.737650][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.741967][ T8233] sock_do_ioctl+0x477/0x700 [ 147.746547][ T8233] sock_ioctl+0x997/0xef0 [ 147.750892][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.755593][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.760306][ T8233] do_syscall_64+0x9f/0x140 [ 147.764830][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.770745][ T8233] [ 147.773084][ T8233] Uninit was stored to memory at: [ 147.778361][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 147.784072][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 147.790066][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 147.795090][ T8233] __msan_memcpy+0x46/0x60 [ 147.799495][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 147.804688][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 147.809323][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.813672][ T8233] sock_do_ioctl+0x477/0x700 [ 147.818276][ T8233] sock_ioctl+0x997/0xef0 [ 147.822645][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 147.827320][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 147.831912][ T8233] do_syscall_64+0x9f/0x140 [ 147.836481][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 147.842413][ T8233] [ 147.844744][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 147.852455][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 147.857042][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 147.861624][ T8233] ===================================================== [ 147.868962][ T8233] ===================================================== [ 147.875939][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 147.884220][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 147.894398][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.904473][ T8233] Call Trace: [ 147.907777][ T8233] dump_stack+0x24c/0x2e0 [ 147.912189][ T8233] kmsan_report+0xfb/0x1e0 [ 147.916659][ T8233] __msan_warning+0x5c/0xa0 [ 147.921239][ T8233] __ethtool_get_link_ksettings+0x503/0x5a0 [ 147.927439][ T8233] linkmodes_prepare_data+0x244/0x650 [ 147.932897][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.938138][ T8233] ? ethnl_set_linkinfo+0xe80/0xe80 [ 147.943371][ T8233] ethnl_default_notify+0x432/0x1030 [ 147.949475][ T8233] ethtool_notify+0x259/0x520 [ 147.954216][ T8233] dev_ethtool+0xe250/0xe7b0 [ 147.958846][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.964251][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.969501][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 147.975342][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 147.980761][ T8233] dev_ioctl+0x5a3/0x1260 [ 147.986112][ T8233] sock_do_ioctl+0x477/0x700 [ 147.990722][ T8233] sock_ioctl+0x997/0xef0 [ 147.995833][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.001058][ T8233] ? sock_poll+0x690/0x690 [ 148.005483][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.010209][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.014804][ T8233] do_syscall_64+0x9f/0x140 [ 148.019494][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.025405][ T8233] RIP: 0033:0x440b69 [ 148.029308][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 148.048905][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 148.057317][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 148.065287][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 148.073297][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 148.081281][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 148.089283][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 148.097250][ T8233] [ 148.099579][ T8233] Uninit was stored to memory at: [ 148.104577][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 148.110289][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 148.116257][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 148.121291][ T8233] __msan_memcpy+0x46/0x60 [ 148.125709][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 148.130932][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 148.136820][ T8233] linkmodes_prepare_data+0x244/0x650 [ 148.142184][ T8233] ethnl_default_notify+0x432/0x1030 [ 148.147594][ T8233] ethtool_notify+0x259/0x520 [ 148.152275][ T8233] dev_ethtool+0xe250/0xe7b0 [ 148.156888][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.161205][ T8233] sock_do_ioctl+0x477/0x700 [ 148.165900][ T8233] sock_ioctl+0x997/0xef0 [ 148.170237][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.174956][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.179573][ T8233] do_syscall_64+0x9f/0x140 [ 148.184111][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.189995][ T8233] [ 148.192305][ T8233] Uninit was stored to memory at: [ 148.197304][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 148.203017][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 148.209125][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 148.214138][ T8233] __msan_memcpy+0x46/0x60 [ 148.218571][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 148.223758][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 148.228354][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.232702][ T8233] sock_do_ioctl+0x477/0x700 [ 148.238252][ T8233] sock_ioctl+0x997/0xef0 [ 148.242572][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.247370][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.251966][ T8233] do_syscall_64+0x9f/0x140 [ 148.256464][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.262356][ T8233] [ 148.264932][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 148.272667][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 148.277367][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 148.281976][ T8233] ===================================================== [ 148.289331][ T8233] ===================================================== [ 148.296424][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 148.304727][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 148.314898][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 148.324966][ T8233] Call Trace: [ 148.328257][ T8233] dump_stack+0x24c/0x2e0 [ 148.332677][ T8233] kmsan_report+0xfb/0x1e0 [ 148.337151][ T8233] __msan_warning+0x5c/0xa0 [ 148.341724][ T8233] __ethtool_get_link_ksettings+0x510/0x5a0 [ 148.347656][ T8233] linkmodes_prepare_data+0x244/0x650 [ 148.353052][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.358274][ T8233] ? ethnl_set_linkinfo+0xe80/0xe80 [ 148.363517][ T8233] ethnl_default_notify+0x432/0x1030 [ 148.368807][ T8233] ethtool_notify+0x259/0x520 [ 148.374111][ T8233] dev_ethtool+0xe250/0xe7b0 [ 148.379072][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.384300][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.391158][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 148.397507][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.402733][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.407189][ T8233] sock_do_ioctl+0x477/0x700 [ 148.411785][ T8233] sock_ioctl+0x997/0xef0 [ 148.416132][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.421604][ T8233] ? sock_poll+0x690/0x690 [ 148.426050][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.430760][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.435628][ T8233] do_syscall_64+0x9f/0x140 [ 148.440171][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.446068][ T8233] RIP: 0033:0x440b69 [ 148.449986][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 148.469708][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 148.478409][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 148.486526][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 148.494489][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 148.502465][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 148.510580][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 148.519259][ T8233] [ 148.521597][ T8233] Uninit was stored to memory at: [ 148.526624][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 148.532490][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 148.538469][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 148.543512][ T8233] __msan_memcpy+0x46/0x60 [ 148.547945][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 148.553134][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 148.559038][ T8233] linkmodes_prepare_data+0x244/0x650 [ 148.564581][ T8233] ethnl_default_notify+0x432/0x1030 [ 148.569878][ T8233] ethtool_notify+0x259/0x520 [ 148.574556][ T8233] dev_ethtool+0xe250/0xe7b0 [ 148.579149][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.583488][ T8233] sock_do_ioctl+0x477/0x700 [ 148.588114][ T8233] sock_ioctl+0x997/0xef0 [ 148.592582][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.597266][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.601854][ T8233] do_syscall_64+0x9f/0x140 [ 148.606458][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.612374][ T8233] [ 148.614866][ T8233] Uninit was stored to memory at: [ 148.620568][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 148.626915][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 148.633025][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 148.638197][ T8233] __msan_memcpy+0x46/0x60 [ 148.642623][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 148.647844][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 148.652459][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.657050][ T8233] sock_do_ioctl+0x477/0x700 [ 148.661650][ T8233] sock_ioctl+0x997/0xef0 [ 148.665991][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.670663][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.675341][ T8233] do_syscall_64+0x9f/0x140 [ 148.679875][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.685781][ T8233] [ 148.688100][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 148.695806][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 148.700394][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 148.704977][ T8233] ===================================================== [ 148.712127][ T8233] ===================================================== [ 148.719121][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 148.727496][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 148.737669][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 148.747736][ T8233] Call Trace: [ 148.751028][ T8233] dump_stack+0x24c/0x2e0 [ 148.755401][ T8233] kmsan_report+0xfb/0x1e0 [ 148.759842][ T8233] __msan_warning+0x5c/0xa0 [ 148.764366][ T8233] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 148.770291][ T8233] linkmodes_prepare_data+0x244/0x650 [ 148.775703][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.781011][ T8233] ? ethnl_set_linkinfo+0xe80/0xe80 [ 148.787478][ T8233] ethnl_default_notify+0x432/0x1030 [ 148.792784][ T8233] ethtool_notify+0x259/0x520 [ 148.797455][ T8233] dev_ethtool+0xe250/0xe7b0 [ 148.802057][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.807257][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.812449][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 148.818295][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.823504][ T8233] dev_ioctl+0x5a3/0x1260 [ 148.827825][ T8233] sock_do_ioctl+0x477/0x700 [ 148.832423][ T8233] sock_ioctl+0x997/0xef0 [ 148.836780][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 148.841974][ T8233] ? sock_poll+0x690/0x690 [ 148.846589][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 148.851286][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 148.856251][ T8233] do_syscall_64+0x9f/0x140 [ 148.860765][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 148.866665][ T8233] RIP: 0033:0x440b69 [ 148.870556][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 148.890153][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 148.898584][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 148.906551][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 148.914517][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 148.922487][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 148.930476][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 148.938477][ T8233] [ 148.940792][ T8233] Uninit was stored to memory at: [ 148.945887][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 148.951639][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 148.957730][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 148.962743][ T8233] __msan_memcpy+0x46/0x60 [ 148.967162][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 148.972374][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 148.978265][ T8233] linkmodes_prepare_data+0x244/0x650 [ 148.983631][ T8233] ethnl_default_notify+0x432/0x1030 [ 148.989427][ T8233] ethtool_notify+0x259/0x520 [ 148.994195][ T8233] dev_ethtool+0xe250/0xe7b0 [ 148.998776][ T8233] dev_ioctl+0x5a3/0x1260 [ 149.003110][ T8233] sock_do_ioctl+0x477/0x700 [ 149.007710][ T8233] sock_ioctl+0x997/0xef0 [ 149.012041][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 149.016778][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 149.021356][ T8233] do_syscall_64+0x9f/0x140 [ 149.025852][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.031743][ T8233] [ 149.034049][ T8233] Uninit was stored to memory at: [ 149.039047][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 149.044755][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.050735][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 149.055745][ T8233] __msan_memcpy+0x46/0x60 [ 149.060182][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 149.065397][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 149.070090][ T8233] dev_ioctl+0x5a3/0x1260 [ 149.074435][ T8233] sock_do_ioctl+0x477/0x700 [ 149.079035][ T8233] sock_ioctl+0x997/0xef0 [ 149.083360][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 149.088048][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 149.092652][ T8233] do_syscall_64+0x9f/0x140 [ 149.097146][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.103044][ T8233] [ 149.105374][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 149.113066][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 149.117664][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 149.123484][ T8233] ===================================================== [ 149.130565][ T8233] ===================================================== [ 149.137521][ T8233] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 149.145815][ T8233] CPU: 0 PID: 8233 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.156006][ T8233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.166079][ T8233] Call Trace: [ 149.169377][ T8233] dump_stack+0x24c/0x2e0 [ 149.173772][ T8233] kmsan_report+0xfb/0x1e0 [ 149.178264][ T8233] __msan_warning+0x5c/0xa0 [ 149.182789][ T8233] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 149.188719][ T8233] linkmodes_prepare_data+0x244/0x650 [ 149.194728][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 149.200083][ T8233] ? ethnl_set_linkinfo+0xe80/0xe80 [ 149.205317][ T8233] ethnl_default_notify+0x432/0x1030 [ 149.210641][ T8233] ethtool_notify+0x259/0x520 [ 149.215329][ T8233] dev_ethtool+0xe250/0xe7b0 [ 149.219942][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 149.225154][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 149.230345][ T8233] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.236177][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 149.241509][ T8233] dev_ioctl+0x5a3/0x1260 [ 149.245845][ T8233] sock_do_ioctl+0x477/0x700 [ 149.250451][ T8233] sock_ioctl+0x997/0xef0 [ 149.254992][ T8233] ? kmsan_get_metadata+0x116/0x180 [ 149.260234][ T8233] ? sock_poll+0x690/0x690 [ 149.264788][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 149.269487][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 149.274106][ T8233] do_syscall_64+0x9f/0x140 [ 149.278633][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.284597][ T8233] RIP: 0033:0x440b69 [ 149.288496][ T8233] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 149.308291][ T8233] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 149.316724][ T8233] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 149.324785][ T8233] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 149.332779][ T8233] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 149.340827][ T8233] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000000000 [ 149.349602][ T8233] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 0000000000000003 [ 149.357600][ T8233] [ 149.359943][ T8233] Uninit was stored to memory at: [ 149.364971][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 149.371833][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.377837][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 149.383870][ T8233] __msan_memcpy+0x46/0x60 [ 149.388295][ T8233] tun_get_link_ksettings+0x7c/0xb0 [ 149.393525][ T8233] __ethtool_get_link_ksettings+0x204/0x5a0 [ 149.399440][ T8233] linkmodes_prepare_data+0x244/0x650 [ 149.404810][ T8233] ethnl_default_notify+0x432/0x1030 [ 149.410193][ T8233] ethtool_notify+0x259/0x520 [ 149.414864][ T8233] dev_ethtool+0xe250/0xe7b0 [ 149.419458][ T8233] dev_ioctl+0x5a3/0x1260 [ 149.423785][ T8233] sock_do_ioctl+0x477/0x700 [ 149.428393][ T8233] sock_ioctl+0x997/0xef0 [ 149.432721][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 149.437413][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 149.442008][ T8233] do_syscall_64+0x9f/0x140 [ 149.446511][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.452406][ T8233] [ 149.454725][ T8233] Uninit was stored to memory at: [ 149.459853][ T8233] kmsan_internal_chain_origin+0xad/0x130 [ 149.465671][ T8233] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.471665][ T8233] kmsan_memcpy_metadata+0xb/0x10 [ 149.476796][ T8233] __msan_memcpy+0x46/0x60 [ 149.481262][ T8233] tun_set_link_ksettings+0x7e/0xb0 [ 149.486456][ T8233] dev_ethtool+0xe1a2/0xe7b0 [ 149.491132][ T8233] dev_ioctl+0x5a3/0x1260 [ 149.495507][ T8233] sock_do_ioctl+0x477/0x700 [ 149.500237][ T8233] sock_ioctl+0x997/0xef0 executing program [ 149.504632][ T8233] __se_sys_ioctl+0x311/0x4d0 [ 149.509310][ T8233] __x64_sys_ioctl+0x4a/0x70 [ 149.513912][ T8233] do_syscall_64+0x9f/0x140 [ 149.518433][ T8233] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.524363][ T8233] [ 149.526702][ T8233] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 149.534508][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 149.540762][ T8233] dev_ethtool+0x3cdc/0xe7b0 [ 149.545400][ T8233] ===================================================== [ 149.577609][ T8235] ===================================================== [ 149.585282][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 149.594014][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.605485][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.615577][ T8235] Call Trace: [ 149.619179][ T8235] dump_stack+0x24c/0x2e0 [ 149.623571][ T8235] kmsan_report+0xfb/0x1e0 [ 149.628034][ T8235] __msan_warning+0x5c/0xa0 [ 149.633780][ T8235] __ethtool_get_link_ksettings+0x503/0x5a0 [ 149.640232][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.646160][ T8235] ? strset_cleanup_data+0x190/0x190 [ 149.651677][ T8235] ethnl_default_notify+0x432/0x1030 [ 149.660348][ T8235] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.667076][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 149.672338][ T8235] ethtool_notify+0x259/0x520 [ 149.677261][ T8235] dev_ethtool+0xe228/0xe7b0 [ 149.682051][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 149.687283][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 149.692534][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.699981][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 149.705226][ T8235] dev_ioctl+0x5a3/0x1260 [ 149.709585][ T8235] sock_do_ioctl+0x477/0x700 [ 149.714209][ T8235] sock_ioctl+0x997/0xef0 [ 149.718663][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 149.723865][ T8235] ? sock_poll+0x690/0x690 [ 149.728300][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 149.732997][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 149.737604][ T8235] do_syscall_64+0x9f/0x140 [ 149.742152][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.748059][ T8235] RIP: 0033:0x440b69 [ 149.751975][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 149.772426][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 149.780924][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 149.788924][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 149.796902][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 149.805288][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 149.813406][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 149.821578][ T8235] [ 149.823928][ T8235] Uninit was stored to memory at: [ 149.829473][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 149.835221][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.841392][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 149.846468][ T8235] __msan_memcpy+0x46/0x60 [ 149.851239][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 149.856463][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 149.862793][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.868086][ T8235] ethnl_default_notify+0x432/0x1030 [ 149.873729][ T8235] ethtool_notify+0x259/0x520 [ 149.878869][ T8235] dev_ethtool+0xe228/0xe7b0 [ 149.883471][ T8235] dev_ioctl+0x5a3/0x1260 [ 149.887803][ T8235] sock_do_ioctl+0x477/0x700 [ 149.892505][ T8235] sock_ioctl+0x997/0xef0 [ 149.896853][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 149.901528][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 149.906318][ T8235] do_syscall_64+0x9f/0x140 [ 149.911461][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.917493][ T8235] [ 149.919812][ T8235] Uninit was stored to memory at: [ 149.924821][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 149.930573][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.937013][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 149.942325][ T8235] __msan_memcpy+0x46/0x60 [ 149.947143][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 149.952753][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 149.957990][ T8235] dev_ioctl+0x5a3/0x1260 [ 149.963331][ T8235] sock_do_ioctl+0x477/0x700 [ 149.968739][ T8235] sock_ioctl+0x997/0xef0 [ 149.973078][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 149.977775][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 149.982562][ T8235] do_syscall_64+0x9f/0x140 [ 149.987076][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.992982][ T8235] [ 149.995329][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 150.003042][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.007789][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.012419][ T8235] ===================================================== [ 150.019788][ T8235] ===================================================== [ 150.026795][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 150.035280][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 150.045484][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.055587][ T8235] Call Trace: [ 150.058887][ T8235] dump_stack+0x24c/0x2e0 [ 150.063374][ T8235] kmsan_report+0xfb/0x1e0 [ 150.067826][ T8235] __msan_warning+0x5c/0xa0 [ 150.072384][ T8235] __ethtool_get_link_ksettings+0x510/0x5a0 [ 150.078324][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.083648][ T8235] ? strset_cleanup_data+0x190/0x190 [ 150.088979][ T8235] ethnl_default_notify+0x432/0x1030 [ 150.094391][ T8235] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 150.100501][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.105759][ T8235] ethtool_notify+0x259/0x520 [ 150.110484][ T8235] dev_ethtool+0xe228/0xe7b0 [ 150.115249][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.120606][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.125813][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.131659][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.137433][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.141763][ T8235] sock_do_ioctl+0x477/0x700 [ 150.146371][ T8235] sock_ioctl+0x997/0xef0 [ 150.150704][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.156009][ T8235] ? sock_poll+0x690/0x690 [ 150.160468][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.165700][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.170403][ T8235] do_syscall_64+0x9f/0x140 [ 150.175031][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.180942][ T8235] RIP: 0033:0x440b69 [ 150.184854][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 150.205897][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 150.214581][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 150.222770][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 150.230746][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 150.238720][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 150.246702][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 150.254721][ T8235] [ 150.257049][ T8235] Uninit was stored to memory at: [ 150.262174][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 150.268414][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.274562][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 150.279578][ T8235] __msan_memcpy+0x46/0x60 [ 150.284015][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 150.289241][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 150.295194][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.300703][ T8235] ethnl_default_notify+0x432/0x1030 [ 150.306034][ T8235] ethtool_notify+0x259/0x520 [ 150.310743][ T8235] dev_ethtool+0xe228/0xe7b0 [ 150.315474][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.320534][ T8235] sock_do_ioctl+0x477/0x700 [ 150.325136][ T8235] sock_ioctl+0x997/0xef0 [ 150.329922][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.334644][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.339703][ T8235] do_syscall_64+0x9f/0x140 [ 150.344250][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.350693][ T8235] [ 150.353030][ T8235] Uninit was stored to memory at: [ 150.358217][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 150.363988][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.370004][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 150.375065][ T8235] __msan_memcpy+0x46/0x60 [ 150.379504][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 150.384755][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 150.389354][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.393685][ T8235] sock_do_ioctl+0x477/0x700 [ 150.398316][ T8235] sock_ioctl+0x997/0xef0 [ 150.402683][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.407364][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.411959][ T8235] do_syscall_64+0x9f/0x140 [ 150.416469][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.422367][ T8235] [ 150.424688][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 150.432399][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.437122][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.441751][ T8235] ===================================================== [ 150.449082][ T8235] ===================================================== [ 150.456074][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 150.464801][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 150.474999][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.485108][ T8235] Call Trace: [ 150.488426][ T8235] dump_stack+0x24c/0x2e0 [ 150.492819][ T8235] kmsan_report+0xfb/0x1e0 [ 150.497785][ T8235] __msan_warning+0x5c/0xa0 [ 150.502311][ T8235] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 150.508371][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.513718][ T8235] ? strset_cleanup_data+0x190/0x190 [ 150.519074][ T8235] ethnl_default_notify+0x432/0x1030 [ 150.524388][ T8235] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 150.530488][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.535726][ T8235] ethtool_notify+0x259/0x520 [ 150.540407][ T8235] dev_ethtool+0xe228/0xe7b0 [ 150.546304][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.551505][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.556896][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.562966][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.569236][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.573662][ T8235] sock_do_ioctl+0x477/0x700 [ 150.578356][ T8235] sock_ioctl+0x997/0xef0 [ 150.582711][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.587948][ T8235] ? sock_poll+0x690/0x690 [ 150.592376][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.597264][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.602270][ T8235] do_syscall_64+0x9f/0x140 [ 150.606776][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.612677][ T8235] RIP: 0033:0x440b69 [ 150.617172][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 150.638072][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 150.647189][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 150.655164][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 150.664011][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 150.672164][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 150.680244][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 150.689131][ T8235] [ 150.691454][ T8235] Uninit was stored to memory at: [ 150.696463][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 150.702197][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.708194][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 150.713233][ T8235] __msan_memcpy+0x46/0x60 [ 150.717669][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 150.722875][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 150.728813][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.734109][ T8235] ethnl_default_notify+0x432/0x1030 [ 150.739414][ T8235] ethtool_notify+0x259/0x520 [ 150.744089][ T8235] dev_ethtool+0xe228/0xe7b0 [ 150.748678][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.753039][ T8235] sock_do_ioctl+0x477/0x700 [ 150.757630][ T8235] sock_ioctl+0x997/0xef0 [ 150.761951][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.766620][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.771204][ T8235] do_syscall_64+0x9f/0x140 [ 150.775700][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.781583][ T8235] [ 150.783891][ T8235] Uninit was stored to memory at: [ 150.788890][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 150.794601][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.800576][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 150.805651][ T8235] __msan_memcpy+0x46/0x60 [ 150.810072][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 150.815281][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 150.819914][ T8235] dev_ioctl+0x5a3/0x1260 [ 150.824616][ T8235] sock_do_ioctl+0x477/0x700 [ 150.829246][ T8235] sock_ioctl+0x997/0xef0 [ 150.833575][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 150.838267][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 150.842911][ T8235] do_syscall_64+0x9f/0x140 [ 150.847436][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.853373][ T8235] [ 150.855683][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 150.863379][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.867997][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 150.872626][ T8235] ===================================================== [ 150.879935][ T8235] ===================================================== [ 150.886906][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 150.895235][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 150.905416][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.915576][ T8235] Call Trace: [ 150.918873][ T8235] dump_stack+0x24c/0x2e0 [ 150.923264][ T8235] kmsan_report+0xfb/0x1e0 [ 150.927712][ T8235] __msan_warning+0x5c/0xa0 [ 150.932241][ T8235] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 150.938175][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.943497][ T8235] ? strset_cleanup_data+0x190/0x190 [ 150.953099][ T8235] ethnl_default_notify+0x432/0x1030 [ 150.958593][ T8235] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 150.964805][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.970018][ T8235] ethtool_notify+0x259/0x520 [ 150.974721][ T8235] dev_ethtool+0xe228/0xe7b0 [ 150.979331][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.984545][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 150.989793][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.995648][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.000923][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.005281][ T8235] sock_do_ioctl+0x477/0x700 [ 151.011305][ T8235] sock_ioctl+0x997/0xef0 [ 151.015637][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.020841][ T8235] ? sock_poll+0x690/0x690 [ 151.025281][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.030130][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.035514][ T8235] do_syscall_64+0x9f/0x140 [ 151.040291][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.046189][ T8235] RIP: 0033:0x440b69 [ 151.050081][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 151.071684][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 151.080124][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 151.088103][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 151.096186][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 151.104191][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 151.112215][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 151.123273][ T8235] [ 151.125662][ T8235] Uninit was stored to memory at: [ 151.130672][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 151.136889][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.143882][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 151.148993][ T8235] __msan_memcpy+0x46/0x60 [ 151.153539][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 151.158981][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 151.168163][ T8235] linkinfo_prepare_data+0x1e8/0x4b0 [ 151.173458][ T8235] ethnl_default_notify+0x432/0x1030 [ 151.178860][ T8235] ethtool_notify+0x259/0x520 [ 151.183658][ T8235] dev_ethtool+0xe228/0xe7b0 [ 151.188348][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.192780][ T8235] sock_do_ioctl+0x477/0x700 [ 151.197496][ T8235] sock_ioctl+0x997/0xef0 [ 151.201845][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.206540][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.211243][ T8235] do_syscall_64+0x9f/0x140 [ 151.215758][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.221652][ T8235] [ 151.223968][ T8235] Uninit was stored to memory at: [ 151.229336][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 151.235069][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.241068][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 151.246184][ T8235] __msan_memcpy+0x46/0x60 [ 151.250597][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 151.255802][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 151.260474][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.264880][ T8235] sock_do_ioctl+0x477/0x700 [ 151.269486][ T8235] sock_ioctl+0x997/0xef0 [ 151.273944][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.278629][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.283225][ T8235] do_syscall_64+0x9f/0x140 [ 151.287866][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.293810][ T8235] [ 151.296173][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 151.304717][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 151.309335][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 151.313932][ T8235] ===================================================== [ 151.321727][ T8235] ===================================================== [ 151.329445][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 151.337735][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 151.349219][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 151.359390][ T8235] Call Trace: [ 151.362696][ T8235] dump_stack+0x24c/0x2e0 [ 151.367184][ T8235] kmsan_report+0xfb/0x1e0 [ 151.371635][ T8235] __msan_warning+0x5c/0xa0 [ 151.376170][ T8235] __ethtool_get_link_ksettings+0x503/0x5a0 [ 151.383236][ T8235] linkmodes_prepare_data+0x244/0x650 [ 151.388729][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.393983][ T8235] ? ethnl_set_linkinfo+0xe80/0xe80 [ 151.399217][ T8235] ethnl_default_notify+0x432/0x1030 [ 151.404543][ T8235] ethtool_notify+0x259/0x520 [ 151.409231][ T8235] dev_ethtool+0xe250/0xe7b0 [ 151.413839][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.419049][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.424321][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 151.430136][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.435351][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.439710][ T8235] sock_do_ioctl+0x477/0x700 [ 151.444332][ T8235] sock_ioctl+0x997/0xef0 [ 151.448664][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.453863][ T8235] ? sock_poll+0x690/0x690 [ 151.458281][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.462974][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.467568][ T8235] do_syscall_64+0x9f/0x140 [ 151.472071][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.477974][ T8235] RIP: 0033:0x440b69 [ 151.481895][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 151.501510][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 151.509927][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 151.517987][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 151.525958][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 151.533941][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 151.541938][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 151.549952][ T8235] [ 151.552274][ T8235] Uninit was stored to memory at: [ 151.559016][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 151.565520][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.571614][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 151.577029][ T8235] __msan_memcpy+0x46/0x60 [ 151.581475][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 151.586858][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 151.592807][ T8235] linkmodes_prepare_data+0x244/0x650 [ 151.598204][ T8235] ethnl_default_notify+0x432/0x1030 [ 151.603526][ T8235] ethtool_notify+0x259/0x520 [ 151.608226][ T8235] dev_ethtool+0xe250/0xe7b0 [ 151.612851][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.617212][ T8235] sock_do_ioctl+0x477/0x700 [ 151.621861][ T8235] sock_ioctl+0x997/0xef0 [ 151.626232][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.630923][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.635657][ T8235] do_syscall_64+0x9f/0x140 [ 151.640269][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.646204][ T8235] [ 151.648534][ T8235] Uninit was stored to memory at: [ 151.653699][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 151.659644][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.665960][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 151.671027][ T8235] __msan_memcpy+0x46/0x60 [ 151.676086][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 151.681316][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 151.687645][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.692017][ T8235] sock_do_ioctl+0x477/0x700 [ 151.696679][ T8235] sock_ioctl+0x997/0xef0 [ 151.701021][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.705724][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.710343][ T8235] do_syscall_64+0x9f/0x140 [ 151.714862][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.720783][ T8235] [ 151.723129][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 151.731098][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 151.735802][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 151.741417][ T8235] ===================================================== [ 151.749537][ T8235] ===================================================== [ 151.756567][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 151.765563][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 151.777010][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 151.787701][ T8235] Call Trace: [ 151.791211][ T8235] dump_stack+0x24c/0x2e0 [ 151.795713][ T8235] kmsan_report+0xfb/0x1e0 [ 151.800441][ T8235] __msan_warning+0x5c/0xa0 [ 151.804995][ T8235] __ethtool_get_link_ksettings+0x510/0x5a0 [ 151.810940][ T8235] linkmodes_prepare_data+0x244/0x650 [ 151.816356][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.821620][ T8235] ? ethnl_set_linkinfo+0xe80/0xe80 [ 151.826863][ T8235] ethnl_default_notify+0x432/0x1030 [ 151.832395][ T8235] ethtool_notify+0x259/0x520 [ 151.837147][ T8235] dev_ethtool+0xe250/0xe7b0 [ 151.841910][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.847338][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.856671][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 151.863376][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.868938][ T8235] dev_ioctl+0x5a3/0x1260 [ 151.873284][ T8235] sock_do_ioctl+0x477/0x700 [ 151.877923][ T8235] sock_ioctl+0x997/0xef0 [ 151.882423][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 151.888036][ T8235] ? sock_poll+0x690/0x690 [ 151.892550][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 151.898462][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 151.904477][ T8235] do_syscall_64+0x9f/0x140 [ 151.909717][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.916379][ T8235] RIP: 0033:0x440b69 [ 151.920290][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 151.941558][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 151.950254][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 151.958781][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 151.968147][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 151.977374][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 151.985823][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 151.994602][ T8235] [ 151.997871][ T8235] Uninit was stored to memory at: [ 152.003274][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.009326][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.015933][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.021077][ T8235] __msan_memcpy+0x46/0x60 [ 152.025518][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 152.030754][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 152.036766][ T8235] linkmodes_prepare_data+0x244/0x650 [ 152.042164][ T8235] ethnl_default_notify+0x432/0x1030 [ 152.047486][ T8235] ethtool_notify+0x259/0x520 [ 152.052238][ T8235] dev_ethtool+0xe250/0xe7b0 [ 152.057036][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.061414][ T8235] sock_do_ioctl+0x477/0x700 [ 152.066359][ T8235] sock_ioctl+0x997/0xef0 [ 152.070832][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.075519][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.080729][ T8235] do_syscall_64+0x9f/0x140 [ 152.085275][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.092545][ T8235] [ 152.094872][ T8235] Uninit was stored to memory at: [ 152.099906][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.105627][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.111622][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.116648][ T8235] __msan_memcpy+0x46/0x60 [ 152.121181][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 152.126491][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 152.131212][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.135665][ T8235] sock_do_ioctl+0x477/0x700 [ 152.140264][ T8235] sock_ioctl+0x997/0xef0 [ 152.144731][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.149417][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.154006][ T8235] do_syscall_64+0x9f/0x140 [ 152.159193][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.165611][ T8235] [ 152.168035][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 152.175741][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 152.180450][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 152.185076][ T8235] ===================================================== [ 152.192522][ T8235] ===================================================== [ 152.199499][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 152.207874][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 152.218407][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 152.228568][ T8235] Call Trace: [ 152.231865][ T8235] dump_stack+0x24c/0x2e0 [ 152.236233][ T8235] kmsan_report+0xfb/0x1e0 [ 152.240719][ T8235] __msan_warning+0x5c/0xa0 [ 152.245259][ T8235] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 152.251216][ T8235] linkmodes_prepare_data+0x244/0x650 [ 152.256688][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.261946][ T8235] ? ethnl_set_linkinfo+0xe80/0xe80 [ 152.267212][ T8235] ethnl_default_notify+0x432/0x1030 [ 152.272747][ T8235] ethtool_notify+0x259/0x520 [ 152.277473][ T8235] dev_ethtool+0xe250/0xe7b0 [ 152.282101][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.287438][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.292648][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 152.298457][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.303673][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.308064][ T8235] sock_do_ioctl+0x477/0x700 [ 152.312676][ T8235] sock_ioctl+0x997/0xef0 [ 152.317290][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.322505][ T8235] ? sock_poll+0x690/0x690 [ 152.327000][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.331688][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.336286][ T8235] do_syscall_64+0x9f/0x140 [ 152.340907][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.346933][ T8235] RIP: 0033:0x440b69 [ 152.350848][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 152.370456][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 152.379162][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 152.387247][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 152.395832][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 152.403936][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 152.412023][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 152.420559][ T8235] [ 152.422897][ T8235] Uninit was stored to memory at: [ 152.427923][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.433710][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.440265][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.445354][ T8235] __msan_memcpy+0x46/0x60 [ 152.449807][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 152.455313][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 152.461939][ T8235] linkmodes_prepare_data+0x244/0x650 [ 152.468107][ T8235] ethnl_default_notify+0x432/0x1030 [ 152.474237][ T8235] ethtool_notify+0x259/0x520 [ 152.478927][ T8235] dev_ethtool+0xe250/0xe7b0 [ 152.483545][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.487889][ T8235] sock_do_ioctl+0x477/0x700 [ 152.492483][ T8235] sock_ioctl+0x997/0xef0 [ 152.496814][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.501892][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.506808][ T8235] do_syscall_64+0x9f/0x140 [ 152.511344][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.517279][ T8235] [ 152.519626][ T8235] Uninit was stored to memory at: [ 152.524731][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.530651][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.536638][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.541713][ T8235] __msan_memcpy+0x46/0x60 [ 152.546173][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 152.551403][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 152.555990][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.560311][ T8235] sock_do_ioctl+0x477/0x700 [ 152.564913][ T8235] sock_ioctl+0x997/0xef0 [ 152.569237][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.573938][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.578530][ T8235] do_syscall_64+0x9f/0x140 [ 152.583051][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.589402][ T8235] [ 152.591737][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 152.599437][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 152.604059][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 152.608680][ T8235] ===================================================== [ 152.616709][ T8235] ===================================================== [ 152.623874][ T8235] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 152.632646][ T8235] CPU: 0 PID: 8235 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 152.644128][ T8235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 152.654226][ T8235] Call Trace: [ 152.657593][ T8235] dump_stack+0x24c/0x2e0 [ 152.661969][ T8235] kmsan_report+0xfb/0x1e0 [ 152.666419][ T8235] __msan_warning+0x5c/0xa0 [ 152.671119][ T8235] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 152.677839][ T8235] linkmodes_prepare_data+0x244/0x650 [ 152.683248][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.688565][ T8235] ? ethnl_set_linkinfo+0xe80/0xe80 [ 152.693790][ T8235] ethnl_default_notify+0x432/0x1030 [ 152.699255][ T8235] ethtool_notify+0x259/0x520 [ 152.703981][ T8235] dev_ethtool+0xe250/0xe7b0 [ 152.708588][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.713818][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.719017][ T8235] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 152.724844][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.730068][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.734405][ T8235] sock_do_ioctl+0x477/0x700 [ 152.739035][ T8235] sock_ioctl+0x997/0xef0 [ 152.743396][ T8235] ? kmsan_get_metadata+0x116/0x180 [ 152.748606][ T8235] ? sock_poll+0x690/0x690 [ 152.753074][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.757861][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.762460][ T8235] do_syscall_64+0x9f/0x140 [ 152.767059][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.772956][ T8235] RIP: 0033:0x440b69 [ 152.776845][ T8235] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 152.796470][ T8235] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 152.804897][ T8235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 152.812944][ T8235] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 152.821152][ T8235] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 152.829229][ T8235] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000023b0c [ 152.837209][ T8235] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 152.845277][ T8235] [ 152.847621][ T8235] Uninit was stored to memory at: [ 152.852632][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.858877][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.864872][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.869926][ T8235] __msan_memcpy+0x46/0x60 [ 152.875119][ T8235] tun_get_link_ksettings+0x7c/0xb0 [ 152.880320][ T8235] __ethtool_get_link_ksettings+0x204/0x5a0 [ 152.886256][ T8235] linkmodes_prepare_data+0x244/0x650 [ 152.891624][ T8235] ethnl_default_notify+0x432/0x1030 [ 152.896903][ T8235] ethtool_notify+0x259/0x520 [ 152.901569][ T8235] dev_ethtool+0xe250/0xe7b0 [ 152.906155][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.910497][ T8235] sock_do_ioctl+0x477/0x700 [ 152.915107][ T8235] sock_ioctl+0x997/0xef0 [ 152.919462][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.924156][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 152.928807][ T8235] do_syscall_64+0x9f/0x140 [ 152.933850][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.939788][ T8235] [ 152.942219][ T8235] Uninit was stored to memory at: [ 152.947244][ T8235] kmsan_internal_chain_origin+0xad/0x130 [ 152.952964][ T8235] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.959008][ T8235] kmsan_memcpy_metadata+0xb/0x10 [ 152.964044][ T8235] __msan_memcpy+0x46/0x60 [ 152.968454][ T8235] tun_set_link_ksettings+0x7e/0xb0 [ 152.973646][ T8235] dev_ethtool+0xe1a2/0xe7b0 [ 152.978257][ T8235] dev_ioctl+0x5a3/0x1260 [ 152.982704][ T8235] sock_do_ioctl+0x477/0x700 [ 152.987300][ T8235] sock_ioctl+0x997/0xef0 executing program [ 152.991627][ T8235] __se_sys_ioctl+0x311/0x4d0 [ 152.996322][ T8235] __x64_sys_ioctl+0x4a/0x70 [ 153.001005][ T8235] do_syscall_64+0x9f/0x140 [ 153.005531][ T8235] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.011464][ T8235] [ 153.013807][ T8235] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 153.021535][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 153.026346][ T8235] dev_ethtool+0x3cdc/0xe7b0 [ 153.030945][ T8235] ===================================================== [ 153.067689][ T8236] ===================================================== [ 153.074756][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 153.083854][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 153.094125][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 153.104374][ T8236] Call Trace: [ 153.107650][ T8236] dump_stack+0x24c/0x2e0 [ 153.112010][ T8236] kmsan_report+0xfb/0x1e0 [ 153.116428][ T8236] __msan_warning+0x5c/0xa0 [ 153.120933][ T8236] __ethtool_get_link_ksettings+0x503/0x5a0 [ 153.126826][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.132103][ T8236] ? strset_cleanup_data+0x190/0x190 [ 153.137398][ T8236] ethnl_default_notify+0x432/0x1030 [ 153.142680][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 153.148741][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.153929][ T8236] ethtool_notify+0x259/0x520 [ 153.158614][ T8236] dev_ethtool+0xe228/0xe7b0 [ 153.163214][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.168407][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.173600][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 153.179502][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.184795][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.189145][ T8236] sock_do_ioctl+0x477/0x700 [ 153.193733][ T8236] sock_ioctl+0x997/0xef0 [ 153.198066][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.203273][ T8236] ? sock_poll+0x690/0x690 [ 153.207777][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.212512][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.217198][ T8236] do_syscall_64+0x9f/0x140 [ 153.221711][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.229271][ T8236] RIP: 0033:0x440b69 [ 153.233818][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 153.253620][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 153.262051][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 153.270019][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 153.278007][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 153.286019][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 153.294036][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 153.302026][ T8236] [ 153.304359][ T8236] Uninit was stored to memory at: [ 153.309374][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 153.315085][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.321069][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 153.326092][ T8236] __msan_memcpy+0x46/0x60 [ 153.330502][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 153.335695][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 153.341616][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.347049][ T8236] ethnl_default_notify+0x432/0x1030 [ 153.352418][ T8236] ethtool_notify+0x259/0x520 [ 153.357095][ T8236] dev_ethtool+0xe228/0xe7b0 [ 153.361682][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.366035][ T8236] sock_do_ioctl+0x477/0x700 [ 153.370643][ T8236] sock_ioctl+0x997/0xef0 [ 153.374965][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.379655][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.384261][ T8236] do_syscall_64+0x9f/0x140 [ 153.388770][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.394656][ T8236] [ 153.396972][ T8236] Uninit was stored to memory at: [ 153.401976][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 153.407704][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.413771][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 153.419333][ T8236] __msan_memcpy+0x46/0x60 [ 153.423759][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 153.429042][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 153.433635][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.437960][ T8236] sock_do_ioctl+0x477/0x700 [ 153.442684][ T8236] sock_ioctl+0x997/0xef0 [ 153.447110][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.459026][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.463657][ T8236] do_syscall_64+0x9f/0x140 [ 153.470547][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.476525][ T8236] [ 153.478850][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 153.486645][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 153.491329][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 153.495911][ T8236] ===================================================== [ 153.503474][ T8236] ===================================================== [ 153.519665][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 153.527972][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 153.538409][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 153.549434][ T8236] Call Trace: [ 153.553218][ T8236] dump_stack+0x24c/0x2e0 [ 153.557869][ T8236] kmsan_report+0xfb/0x1e0 [ 153.562311][ T8236] __msan_warning+0x5c/0xa0 [ 153.566857][ T8236] __ethtool_get_link_ksettings+0x510/0x5a0 [ 153.573079][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.579265][ T8236] ? strset_cleanup_data+0x190/0x190 [ 153.584626][ T8236] ethnl_default_notify+0x432/0x1030 [ 153.589943][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 153.596656][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.601865][ T8236] ethtool_notify+0x259/0x520 [ 153.606561][ T8236] dev_ethtool+0xe228/0xe7b0 [ 153.611168][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.616728][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.621939][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 153.627854][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.633073][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.637424][ T8236] sock_do_ioctl+0x477/0x700 [ 153.642023][ T8236] sock_ioctl+0x997/0xef0 [ 153.646366][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 153.652037][ T8236] ? sock_poll+0x690/0x690 [ 153.657036][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.662039][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.668335][ T8236] do_syscall_64+0x9f/0x140 [ 153.676796][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.682950][ T8236] RIP: 0033:0x440b69 [ 153.687206][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 153.709032][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 153.717475][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 153.725461][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 153.733579][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 153.741761][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 153.750377][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 153.758576][ T8236] [ 153.760921][ T8236] Uninit was stored to memory at: [ 153.767670][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 153.773399][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.779402][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 153.784436][ T8236] __msan_memcpy+0x46/0x60 [ 153.788886][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 153.794104][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 153.800017][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.805297][ T8236] ethnl_default_notify+0x432/0x1030 [ 153.810596][ T8236] ethtool_notify+0x259/0x520 [ 153.815332][ T8236] dev_ethtool+0xe228/0xe7b0 [ 153.820027][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.824358][ T8236] sock_do_ioctl+0x477/0x700 [ 153.829011][ T8236] sock_ioctl+0x997/0xef0 [ 153.833416][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.838152][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.842879][ T8236] do_syscall_64+0x9f/0x140 [ 153.847379][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.855493][ T8236] [ 153.857849][ T8236] Uninit was stored to memory at: [ 153.862873][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 153.868606][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.874591][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 153.879791][ T8236] __msan_memcpy+0x46/0x60 [ 153.884249][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 153.889479][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 153.894080][ T8236] dev_ioctl+0x5a3/0x1260 [ 153.898405][ T8236] sock_do_ioctl+0x477/0x700 [ 153.903014][ T8236] sock_ioctl+0x997/0xef0 [ 153.907379][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 153.912062][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 153.916644][ T8236] do_syscall_64+0x9f/0x140 [ 153.921147][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.927141][ T8236] [ 153.929462][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 153.937513][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 153.942379][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 153.947071][ T8236] ===================================================== [ 153.954261][ T8236] ===================================================== [ 153.961248][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 153.969847][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 153.980042][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 153.991800][ T8236] Call Trace: [ 153.995123][ T8236] dump_stack+0x24c/0x2e0 [ 153.999642][ T8236] kmsan_report+0xfb/0x1e0 [ 154.004127][ T8236] __msan_warning+0x5c/0xa0 [ 154.008672][ T8236] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 154.014645][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 154.020003][ T8236] ? strset_cleanup_data+0x190/0x190 [ 154.025335][ T8236] ethnl_default_notify+0x432/0x1030 [ 154.030661][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 154.036767][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.042019][ T8236] ethtool_notify+0x259/0x520 [ 154.046738][ T8236] dev_ethtool+0xe228/0xe7b0 [ 154.061214][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.066425][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.071769][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 154.077600][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.082835][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.087168][ T8236] sock_do_ioctl+0x477/0x700 [ 154.091792][ T8236] sock_ioctl+0x997/0xef0 [ 154.096144][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.101524][ T8236] ? sock_poll+0x690/0x690 [ 154.105958][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.110994][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.115613][ T8236] do_syscall_64+0x9f/0x140 [ 154.120362][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.126774][ T8236] RIP: 0033:0x440b69 [ 154.130664][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 154.151048][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 154.159569][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 154.168524][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 154.176530][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 154.184507][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 154.192587][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 154.200671][ T8236] [ 154.202990][ T8236] Uninit was stored to memory at: [ 154.207997][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 154.213736][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.219728][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 154.225040][ T8236] __msan_memcpy+0x46/0x60 [ 154.229464][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 154.235500][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 154.241433][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 154.246769][ T8236] ethnl_default_notify+0x432/0x1030 [ 154.252093][ T8236] ethtool_notify+0x259/0x520 [ 154.256793][ T8236] dev_ethtool+0xe228/0xe7b0 [ 154.261406][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.265777][ T8236] sock_do_ioctl+0x477/0x700 [ 154.270364][ T8236] sock_ioctl+0x997/0xef0 [ 154.274712][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.279653][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.284298][ T8236] do_syscall_64+0x9f/0x140 [ 154.288821][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.295238][ T8236] [ 154.298506][ T8236] Uninit was stored to memory at: [ 154.303522][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 154.309249][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.315741][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 154.320755][ T8236] __msan_memcpy+0x46/0x60 [ 154.325162][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 154.330363][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 154.334963][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.339296][ T8236] sock_do_ioctl+0x477/0x700 [ 154.343900][ T8236] sock_ioctl+0x997/0xef0 [ 154.348218][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.352904][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.357513][ T8236] do_syscall_64+0x9f/0x140 [ 154.362017][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.367955][ T8236] [ 154.370316][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 154.378056][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 154.382763][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 154.387457][ T8236] ===================================================== [ 154.394549][ T8236] ===================================================== [ 154.401563][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 154.409935][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 154.420108][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.430215][ T8236] Call Trace: [ 154.433506][ T8236] dump_stack+0x24c/0x2e0 [ 154.437867][ T8236] kmsan_report+0xfb/0x1e0 [ 154.442312][ T8236] __msan_warning+0x5c/0xa0 [ 154.446901][ T8236] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 154.452951][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 154.458561][ T8236] ? strset_cleanup_data+0x190/0x190 [ 154.463882][ T8236] ethnl_default_notify+0x432/0x1030 [ 154.469191][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 154.475297][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.480526][ T8236] ethtool_notify+0x259/0x520 [ 154.485226][ T8236] dev_ethtool+0xe228/0xe7b0 [ 154.489845][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.495768][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.500997][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 154.507025][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.513019][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.517369][ T8236] sock_do_ioctl+0x477/0x700 [ 154.522016][ T8236] sock_ioctl+0x997/0xef0 [ 154.526628][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.531931][ T8236] ? sock_poll+0x690/0x690 [ 154.536376][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.541214][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.545918][ T8236] do_syscall_64+0x9f/0x140 [ 154.550656][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.556565][ T8236] RIP: 0033:0x440b69 [ 154.560450][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 154.580084][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 154.588697][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 154.596697][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 154.604847][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 154.612835][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 154.620868][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 154.628861][ T8236] [ 154.632121][ T8236] Uninit was stored to memory at: [ 154.637285][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 154.643493][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.649539][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 154.654596][ T8236] __msan_memcpy+0x46/0x60 [ 154.659300][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 154.664703][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 154.670630][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 154.676091][ T8236] ethnl_default_notify+0x432/0x1030 [ 154.681384][ T8236] ethtool_notify+0x259/0x520 [ 154.686098][ T8236] dev_ethtool+0xe228/0xe7b0 [ 154.690737][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.695150][ T8236] sock_do_ioctl+0x477/0x700 [ 154.699743][ T8236] sock_ioctl+0x997/0xef0 [ 154.704081][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.708760][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.713360][ T8236] do_syscall_64+0x9f/0x140 [ 154.717872][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.723831][ T8236] [ 154.726175][ T8236] Uninit was stored to memory at: [ 154.731191][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 154.736933][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.742915][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 154.748444][ T8236] __msan_memcpy+0x46/0x60 [ 154.752996][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 154.758246][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 154.762840][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.767487][ T8236] sock_do_ioctl+0x477/0x700 [ 154.772123][ T8236] sock_ioctl+0x997/0xef0 [ 154.776664][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.781368][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.785997][ T8236] do_syscall_64+0x9f/0x140 [ 154.790523][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.796415][ T8236] [ 154.798765][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 154.806481][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 154.811077][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 154.815689][ T8236] ===================================================== [ 154.823229][ T8236] ===================================================== [ 154.830204][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 154.838674][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 154.848867][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.859113][ T8236] Call Trace: [ 154.863105][ T8236] dump_stack+0x24c/0x2e0 [ 154.867520][ T8236] kmsan_report+0xfb/0x1e0 [ 154.871960][ T8236] __msan_warning+0x5c/0xa0 [ 154.876485][ T8236] __ethtool_get_link_ksettings+0x503/0x5a0 [ 154.882413][ T8236] linkmodes_prepare_data+0x244/0x650 [ 154.887855][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.893082][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 154.898323][ T8236] ethnl_default_notify+0x432/0x1030 [ 154.903636][ T8236] ethtool_notify+0x259/0x520 [ 154.908408][ T8236] dev_ethtool+0xe250/0xe7b0 [ 154.912996][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.918280][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.923477][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 154.929319][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.934578][ T8236] dev_ioctl+0x5a3/0x1260 [ 154.939008][ T8236] sock_do_ioctl+0x477/0x700 [ 154.944056][ T8236] sock_ioctl+0x997/0xef0 [ 154.948400][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 154.953595][ T8236] ? sock_poll+0x690/0x690 [ 154.958004][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 154.962765][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 154.967355][ T8236] do_syscall_64+0x9f/0x140 [ 154.971878][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.977771][ T8236] RIP: 0033:0x440b69 [ 154.981660][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 155.001361][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.009812][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 155.017790][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.025770][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.033798][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 155.041896][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 155.051624][ T8236] [ 155.053973][ T8236] Uninit was stored to memory at: [ 155.059288][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 155.065055][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.071156][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 155.076281][ T8236] __msan_memcpy+0x46/0x60 [ 155.081057][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 155.086347][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.092409][ T8236] linkmodes_prepare_data+0x244/0x650 [ 155.097795][ T8236] ethnl_default_notify+0x432/0x1030 [ 155.103094][ T8236] ethtool_notify+0x259/0x520 [ 155.107778][ T8236] dev_ethtool+0xe250/0xe7b0 [ 155.112375][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.116695][ T8236] sock_do_ioctl+0x477/0x700 [ 155.121281][ T8236] sock_ioctl+0x997/0xef0 [ 155.125862][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.130532][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.135118][ T8236] do_syscall_64+0x9f/0x140 [ 155.140253][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.147176][ T8236] [ 155.149497][ T8236] Uninit was stored to memory at: [ 155.155023][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 155.160944][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.167052][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 155.172087][ T8236] __msan_memcpy+0x46/0x60 [ 155.176540][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 155.181735][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 155.186349][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.190676][ T8236] sock_do_ioctl+0x477/0x700 [ 155.195264][ T8236] sock_ioctl+0x997/0xef0 [ 155.199717][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.204399][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.208983][ T8236] do_syscall_64+0x9f/0x140 [ 155.213605][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.219505][ T8236] [ 155.221817][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.229524][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 155.234150][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 155.240246][ T8236] ===================================================== [ 155.247869][ T8236] ===================================================== [ 155.254866][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 155.263279][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 155.275115][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.285368][ T8236] Call Trace: [ 155.288855][ T8236] dump_stack+0x24c/0x2e0 [ 155.293230][ T8236] kmsan_report+0xfb/0x1e0 [ 155.297688][ T8236] __msan_warning+0x5c/0xa0 [ 155.302255][ T8236] __ethtool_get_link_ksettings+0x510/0x5a0 [ 155.308203][ T8236] linkmodes_prepare_data+0x244/0x650 [ 155.313634][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.318870][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 155.324100][ T8236] ethnl_default_notify+0x432/0x1030 [ 155.329639][ T8236] ethtool_notify+0x259/0x520 [ 155.334602][ T8236] dev_ethtool+0xe250/0xe7b0 [ 155.339464][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.344683][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.349893][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 155.355714][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.360922][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.365253][ T8236] sock_do_ioctl+0x477/0x700 [ 155.369881][ T8236] sock_ioctl+0x997/0xef0 [ 155.374228][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.379618][ T8236] ? sock_poll+0x690/0x690 [ 155.384085][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.388783][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.393387][ T8236] do_syscall_64+0x9f/0x140 [ 155.397891][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.403800][ T8236] RIP: 0033:0x440b69 [ 155.407718][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 155.427319][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.435733][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 155.443791][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.451755][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.459810][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 155.467786][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 155.475793][ T8236] [ 155.478113][ T8236] Uninit was stored to memory at: [ 155.483122][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 155.488892][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.494910][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 155.500116][ T8236] __msan_memcpy+0x46/0x60 [ 155.504555][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 155.509757][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.515659][ T8236] linkmodes_prepare_data+0x244/0x650 [ 155.521043][ T8236] ethnl_default_notify+0x432/0x1030 [ 155.526322][ T8236] ethtool_notify+0x259/0x520 [ 155.531169][ T8236] dev_ethtool+0xe250/0xe7b0 [ 155.535849][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.540187][ T8236] sock_do_ioctl+0x477/0x700 [ 155.544877][ T8236] sock_ioctl+0x997/0xef0 [ 155.549221][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.554338][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.559093][ T8236] do_syscall_64+0x9f/0x140 [ 155.563653][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.569639][ T8236] [ 155.571982][ T8236] Uninit was stored to memory at: [ 155.578136][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 155.583910][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.590255][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 155.595473][ T8236] __msan_memcpy+0x46/0x60 [ 155.599926][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 155.605335][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 155.610156][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.614508][ T8236] sock_do_ioctl+0x477/0x700 [ 155.619307][ T8236] sock_ioctl+0x997/0xef0 [ 155.623676][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.628437][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.633031][ T8236] do_syscall_64+0x9f/0x140 [ 155.637550][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.643526][ T8236] [ 155.645860][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.653782][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 155.658487][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 155.663106][ T8236] ===================================================== [ 155.670451][ T8236] ===================================================== [ 155.677483][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 155.687416][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 155.697799][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.709229][ T8236] Call Trace: [ 155.712636][ T8236] dump_stack+0x24c/0x2e0 [ 155.717028][ T8236] kmsan_report+0xfb/0x1e0 [ 155.721567][ T8236] __msan_warning+0x5c/0xa0 [ 155.726113][ T8236] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 155.732779][ T8236] linkmodes_prepare_data+0x244/0x650 [ 155.738576][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.744606][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 155.749865][ T8236] ethnl_default_notify+0x432/0x1030 [ 155.755635][ T8236] ethtool_notify+0x259/0x520 [ 155.760769][ T8236] dev_ethtool+0xe250/0xe7b0 [ 155.765710][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.774728][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.780052][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 155.786058][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.791568][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.796037][ T8236] sock_do_ioctl+0x477/0x700 [ 155.801086][ T8236] sock_ioctl+0x997/0xef0 [ 155.806185][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 155.812127][ T8236] ? sock_poll+0x690/0x690 [ 155.816641][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.821363][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 155.827703][ T8236] do_syscall_64+0x9f/0x140 [ 155.832220][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.838123][ T8236] RIP: 0033:0x440b69 [ 155.842047][ T8236] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 155.863078][ T8236] RSP: 002b:00007ffe8811b1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.872685][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b69 [ 155.880757][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.888948][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.897129][ T8236] R10: 00007ffe8811ac40 R11: 0000000000000246 R12: 0000000000024877 [ 155.905494][ T8236] R13: 00007ffe8811b1f0 R14: 00007ffe8811b1e0 R15: 00007ffe8811b1d4 [ 155.913847][ T8236] [ 155.916281][ T8236] Uninit was stored to memory at: [ 155.921755][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 155.928530][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.934683][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 155.940219][ T8236] __msan_memcpy+0x46/0x60 [ 155.945598][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 155.950954][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.957013][ T8236] linkmodes_prepare_data+0x244/0x650 [ 155.962839][ T8236] ethnl_default_notify+0x432/0x1030 [ 155.968161][ T8236] ethtool_notify+0x259/0x520 [ 155.972853][ T8236] dev_ethtool+0xe250/0xe7b0 [ 155.977445][ T8236] dev_ioctl+0x5a3/0x1260 [ 155.982396][ T8236] sock_do_ioctl+0x477/0x700 [ 155.987020][ T8236] sock_ioctl+0x997/0xef0 [ 155.991351][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 155.996046][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 156.001099][ T8236] do_syscall_64+0x9f/0x140 [ 156.005606][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.011596][ T8236] [ 156.014804][ T8236] Uninit was stored to memory at: [ 156.020076][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 156.025820][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 156.031822][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 156.037031][ T8236] __msan_memcpy+0x46/0x60 [ 156.041572][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 156.046785][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 156.051404][ T8236] dev_ioctl+0x5a3/0x1260 [ 156.055774][ T8236] sock_do_ioctl+0x477/0x700 [ 156.060468][ T8236] sock_ioctl+0x997/0xef0 [ 156.064820][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 156.069513][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 156.076491][ T8236] do_syscall_64+0x9f/0x140 [ 156.081529][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.087706][ T8236] [ 156.090040][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 156.097739][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 156.102377][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 156.106989][ T8236] ===================================================== [ 156.114396][ T8236] ===================================================== [ 156.121691][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 156.130934][ T8236] CPU: 1 PID: 8236 Comm: syz-executor124 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 156.141453][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 156.153328][ T8236] Call Trace: [ 156.156747][ T8236] dump_stack+0x24c/0x2e0 [ 156.161173][ T8236] kmsan_report+0xfb/0x1e0 [ 156.166256][ T8236] __msan_warning+0x5c/0xa0 [ 156.170792][ T8236] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 156.176818][ T8236] linkmodes_prepare_data+0x244/0x650