[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.173' (ECDSA) to the list of known hosts. syzkaller login: [ 148.993945][ T8213] IPVS: ftp: loaded support on port[0] = 21 executing program [ 149.088970][ T8236] ===================================================== [ 149.092998][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 149.092998][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Not tainted 5.12.0-rc6-syzkaller #0 [ 149.092998][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.092998][ T8236] Call Trace: [ 149.092998][ T8236] dump_stack+0x24c/0x2e0 [ 149.092998][ T8236] kmsan_report+0xfb/0x1e0 [ 149.092998][ T8236] __msan_warning+0x5c/0xa0 [ 149.092998][ T8236] __ethtool_get_link_ksettings+0x503/0x5a0 [ 149.092998][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.092998][ T8236] ? strset_cleanup_data+0x190/0x190 [ 149.092998][ T8236] ethnl_default_notify+0x432/0x1030 [ 149.092998][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.092998][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.092998][ T8236] ethtool_notify+0x259/0x520 [ 149.092998][ T8236] dev_ethtool+0xe228/0xe7b0 [ 149.092998][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.092998][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.092998][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.092998][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.092998][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.092998][ T8236] sock_do_ioctl+0x477/0x700 [ 149.092998][ T8236] sock_ioctl+0x997/0xef0 [ 149.092998][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.092998][ T8236] ? sock_poll+0x690/0x690 [ 149.092998][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.092998][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.092998][ T8236] do_syscall_64+0x9f/0x140 [ 149.092998][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.092998][ T8236] RIP: 0033:0x440b89 [ 149.092998][ 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 [ 149.092998][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 149.092998][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 149.092998][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 149.092998][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 149.092998][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 149.092998][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 149.092998][ T8236] [ 149.092998][ T8236] Uninit was stored to memory at: [ 149.092998][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 149.092998][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.092998][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 149.092998][ T8236] __msan_memcpy+0x46/0x60 [ 149.092998][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 149.092998][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 149.092998][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.092998][ T8236] ethnl_default_notify+0x432/0x1030 [ 149.092998][ T8236] ethtool_notify+0x259/0x520 [ 149.092998][ T8236] dev_ethtool+0xe228/0xe7b0 [ 149.092998][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.092998][ T8236] sock_do_ioctl+0x477/0x700 [ 149.092998][ T8236] sock_ioctl+0x997/0xef0 [ 149.092998][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.092998][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.092998][ T8236] do_syscall_64+0x9f/0x140 [ 149.092998][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.092998][ T8236] [ 149.092998][ T8236] Uninit was stored to memory at: [ 149.092998][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 149.092998][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.092998][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 149.092998][ T8236] __msan_memcpy+0x46/0x60 [ 149.092998][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 149.092998][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 149.092998][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.092998][ T8236] sock_do_ioctl+0x477/0x700 [ 149.092998][ T8236] sock_ioctl+0x997/0xef0 [ 149.092998][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.092998][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.092998][ T8236] do_syscall_64+0x9f/0x140 [ 149.092998][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.092998][ T8236] [ 149.092998][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 149.092998][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 149.092998][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 149.092998][ T8236] ===================================================== [ 149.092998][ T8236] Disabling lock debugging due to kernel taint [ 149.515659][ T8236] ===================================================== [ 149.522593][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 149.527492][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.527492][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.527492][ T8236] Call Trace: [ 149.527492][ T8236] dump_stack+0x24c/0x2e0 [ 149.527492][ T8236] kmsan_report+0xfb/0x1e0 [ 149.527492][ T8236] __msan_warning+0x5c/0xa0 [ 149.527492][ T8236] __ethtool_get_link_ksettings+0x510/0x5a0 [ 149.527492][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.527492][ T8236] ? strset_cleanup_data+0x190/0x190 [ 149.527492][ T8236] ethnl_default_notify+0x432/0x1030 [ 149.527492][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.527492][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.527492][ T8236] ethtool_notify+0x259/0x520 [ 149.527492][ T8236] dev_ethtool+0xe228/0xe7b0 [ 149.609954][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.614782][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.620758][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.625539][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.631565][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.635093][ T8236] sock_do_ioctl+0x477/0x700 [ 149.639868][ T8236] sock_ioctl+0x997/0xef0 [ 149.644720][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 149.649515][ T8236] ? sock_poll+0x690/0x690 [ 149.654341][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.659135][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.663988][ T8236] do_syscall_64+0x9f/0x140 [ 149.667580][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.673564][ T8236] RIP: 0033:0x440b89 [ 149.678463][ 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 [ 149.697702][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 149.706075][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 149.714479][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 149.721662][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 149.730022][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 149.738387][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 149.745536][ T8236] [ 149.747923][ T8236] Uninit was stored to memory at: [ 149.753891][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 149.758668][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.764809][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 149.769649][ T8236] __msan_memcpy+0x46/0x60 [ 149.774449][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 149.779248][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 149.785404][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.791433][ T8236] ethnl_default_notify+0x432/0x1030 [ 149.796244][ T8236] ethtool_notify+0x259/0x520 [ 149.801039][ T8236] dev_ethtool+0xe228/0xe7b0 [ 149.805829][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.809415][ T8236] sock_do_ioctl+0x477/0x700 [ 149.814341][ T8236] sock_ioctl+0x997/0xef0 [ 149.819181][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.823955][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.828743][ T8236] do_syscall_64+0x9f/0x140 [ 149.834759][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.840747][ T8236] [ 149.843155][ T8236] Uninit was stored to memory at: [ 149.847939][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 149.853945][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 149.859902][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 149.864679][ T8236] __msan_memcpy+0x46/0x60 [ 149.869476][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 149.874318][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 149.879097][ T8236] dev_ioctl+0x5a3/0x1260 [ 149.883875][ T8236] sock_do_ioctl+0x477/0x700 [ 149.887463][ T8236] sock_ioctl+0x997/0xef0 [ 149.892232][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 149.897022][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 149.901828][ T8236] do_syscall_64+0x9f/0x140 [ 149.905468][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 149.911468][ T8236] [ 149.913860][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 149.922190][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 149.926972][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 149.931748][ T8236] ===================================================== [ 149.939138][ T8236] ===================================================== [ 149.946099][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 149.948992][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.948992][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.948992][ T8236] Call Trace: [ 149.948992][ T8236] dump_stack+0x24c/0x2e0 [ 149.948992][ T8236] kmsan_report+0xfb/0x1e0 [ 149.948992][ T8236] __msan_warning+0x5c/0xa0 [ 149.948992][ T8236] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 149.948992][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 149.948992][ T8236] ? strset_cleanup_data+0x190/0x190 [ 149.948992][ T8236] ethnl_default_notify+0x432/0x1030 [ 150.013358][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 150.019323][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.025293][ T8236] ethtool_notify+0x259/0x520 [ 150.030071][ T8236] dev_ethtool+0xe228/0xe7b0 [ 150.033646][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.039627][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.044382][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.050342][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.055111][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.059887][ T8236] sock_do_ioctl+0x477/0x700 [ 150.064670][ T8236] sock_ioctl+0x997/0xef0 [ 150.069436][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.074270][ T8236] ? sock_poll+0x690/0x690 [ 150.079038][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.082722][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.087548][ T8236] do_syscall_64+0x9f/0x140 [ 150.092318][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.098319][ T8236] RIP: 0033:0x440b89 [ 150.101917][ 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 [ 150.121091][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 150.130645][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 150.137871][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 150.146232][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 150.153416][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 150.161790][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 150.170225][ T8236] [ 150.172622][ T8236] Uninit was stored to memory at: [ 150.177405][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 150.183377][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.189349][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 150.194124][ T8236] __msan_memcpy+0x46/0x60 [ 150.198893][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 150.203658][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 150.209644][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.214421][ T8236] ethnl_default_notify+0x432/0x1030 [ 150.219805][ T8236] ethtool_notify+0x259/0x520 [ 150.224590][ T8236] dev_ethtool+0xe228/0xe7b0 [ 150.229371][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.234146][ T8236] sock_do_ioctl+0x477/0x700 [ 150.238925][ T8236] sock_ioctl+0x997/0xef0 [ 150.242501][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.247288][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.252049][ T8236] do_syscall_64+0x9f/0x140 [ 150.256831][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.262790][ T8236] [ 150.265184][ T8236] Uninit was stored to memory at: [ 150.269961][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 150.275968][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.281932][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 150.286734][ T8236] __msan_memcpy+0x46/0x60 [ 150.291528][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 150.296284][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 150.301066][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.305841][ T8236] sock_do_ioctl+0x477/0x700 [ 150.309424][ T8236] sock_ioctl+0x997/0xef0 [ 150.314272][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.319040][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.323815][ T8236] do_syscall_64+0x9f/0x140 [ 150.328579][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.335762][ T8236] [ 150.338154][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 150.345346][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 150.350126][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 150.354905][ T8236] ===================================================== [ 150.362333][ T8236] ===================================================== [ 150.369265][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 150.372241][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 150.372241][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.372241][ T8236] Call Trace: [ 150.372241][ T8236] dump_stack+0x24c/0x2e0 [ 150.372241][ T8236] kmsan_report+0xfb/0x1e0 [ 150.372241][ T8236] __msan_warning+0x5c/0xa0 [ 150.372241][ T8236] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 150.372241][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.372241][ T8236] ? strset_cleanup_data+0x190/0x190 [ 150.372241][ T8236] ethnl_default_notify+0x432/0x1030 [ 150.372241][ T8236] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 150.439791][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.439791][ T8236] ethtool_notify+0x259/0x520 [ 150.439791][ T8236] dev_ethtool+0xe228/0xe7b0 [ 150.439791][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.439791][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.439791][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.439791][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.439791][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.439791][ T8236] sock_do_ioctl+0x477/0x700 [ 150.439791][ T8236] sock_ioctl+0x997/0xef0 [ 150.439791][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.439791][ T8236] ? sock_poll+0x690/0x690 [ 150.439791][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.439791][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.439791][ T8236] do_syscall_64+0x9f/0x140 [ 150.439791][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.439791][ T8236] RIP: 0033:0x440b89 [ 150.439791][ 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 [ 150.439791][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 150.439791][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 150.439791][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 150.439791][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 150.439791][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 150.439791][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 150.439791][ T8236] [ 150.439791][ T8236] Uninit was stored to memory at: [ 150.439791][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 150.439791][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.439791][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 150.439791][ T8236] __msan_memcpy+0x46/0x60 [ 150.439791][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 150.439791][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 150.439791][ T8236] linkinfo_prepare_data+0x1e8/0x4b0 [ 150.640103][ T8236] ethnl_default_notify+0x432/0x1030 [ 150.644883][ T8236] ethtool_notify+0x259/0x520 [ 150.649668][ T8236] dev_ethtool+0xe228/0xe7b0 [ 150.654458][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.659230][ T8236] sock_do_ioctl+0x477/0x700 [ 150.664016][ T8236] sock_ioctl+0x997/0xef0 [ 150.668789][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.673568][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.678362][ T8236] do_syscall_64+0x9f/0x140 [ 150.681941][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.687932][ T8236] [ 150.690317][ T8236] Uninit was stored to memory at: [ 150.695094][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 150.701068][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 150.707051][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 150.711841][ T8236] __msan_memcpy+0x46/0x60 [ 150.716678][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 150.722654][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 150.726238][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.731032][ T8236] sock_do_ioctl+0x477/0x700 [ 150.735930][ T8236] sock_ioctl+0x997/0xef0 [ 150.740776][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.744350][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.749146][ T8236] do_syscall_64+0x9f/0x140 [ 150.753936][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.759934][ T8236] [ 150.762316][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 150.769506][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 150.774320][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 150.779117][ T8236] ===================================================== [ 150.787160][ T8236] ===================================================== [ 150.795266][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 150.796848][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 150.796848][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 150.796848][ T8236] Call Trace: [ 150.796848][ T8236] dump_stack+0x24c/0x2e0 [ 150.796848][ T8236] kmsan_report+0xfb/0x1e0 [ 150.796848][ T8236] __msan_warning+0x5c/0xa0 [ 150.796848][ T8236] __ethtool_get_link_ksettings+0x503/0x5a0 [ 150.796848][ T8236] linkmodes_prepare_data+0x244/0x650 [ 150.796848][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.796848][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 150.796848][ T8236] ethnl_default_notify+0x432/0x1030 [ 150.867033][ T8236] ethtool_notify+0x259/0x520 [ 150.871827][ T8236] dev_ethtool+0xe250/0xe7b0 [ 150.876677][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.881466][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.886238][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 150.892216][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.898214][ T8236] dev_ioctl+0x5a3/0x1260 [ 150.901806][ T8236] sock_do_ioctl+0x477/0x700 [ 150.906658][ T8236] sock_ioctl+0x997/0xef0 [ 150.911432][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 150.916212][ T8236] ? sock_poll+0x690/0x690 [ 150.920983][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 150.925759][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 150.929333][ T8236] do_syscall_64+0x9f/0x140 [ 150.934120][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 150.940084][ T8236] RIP: 0033:0x440b89 [ 150.943663][ 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 [ 150.963920][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 150.972272][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 150.980639][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 150.987870][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 150.996219][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 151.004590][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 151.011758][ T8236] [ 151.014153][ T8236] Uninit was stored to memory at: [ 151.018937][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.024913][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.030883][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.035662][ T8236] __msan_memcpy+0x46/0x60 [ 151.040444][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 151.045226][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 151.051212][ T8236] linkmodes_prepare_data+0x244/0x650 [ 151.057183][ T8236] ethnl_default_notify+0x432/0x1030 [ 151.061939][ T8236] ethtool_notify+0x259/0x520 [ 151.066735][ T8236] dev_ethtool+0xe250/0xe7b0 [ 151.071509][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.076285][ T8236] sock_do_ioctl+0x477/0x700 [ 151.081073][ T8236] sock_ioctl+0x997/0xef0 [ 151.084658][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.089440][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.094285][ T8236] do_syscall_64+0x9f/0x140 [ 151.099067][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.105021][ T8236] [ 151.107403][ T8236] Uninit was stored to memory at: [ 151.112182][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.118162][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.124126][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.128920][ T8236] __msan_memcpy+0x46/0x60 [ 151.132493][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 151.138457][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 151.143214][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.146797][ T8236] sock_do_ioctl+0x477/0x700 [ 151.153946][ T8236] sock_ioctl+0x997/0xef0 [ 151.158720][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.163495][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.167066][ T8236] do_syscall_64+0x9f/0x140 [ 151.171847][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.177874][ T8236] [ 151.180266][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 151.188609][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 151.192191][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 151.196983][ T8236] ===================================================== [ 151.204943][ T8236] ===================================================== [ 151.211910][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 151.214896][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 151.214896][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 151.214896][ T8236] Call Trace: [ 151.214896][ T8236] dump_stack+0x24c/0x2e0 [ 151.214896][ T8236] kmsan_report+0xfb/0x1e0 [ 151.214896][ T8236] __msan_warning+0x5c/0xa0 [ 151.214896][ T8236] __ethtool_get_link_ksettings+0x510/0x5a0 [ 151.214896][ T8236] linkmodes_prepare_data+0x244/0x650 [ 151.214896][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.214896][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 151.278663][ T8236] ethnl_default_notify+0x432/0x1030 [ 151.284050][ T8236] ethtool_notify+0x259/0x520 [ 151.287636][ T8236] dev_ethtool+0xe250/0xe7b0 [ 151.292415][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.298382][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.303143][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 151.309151][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.313921][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.318693][ T8236] sock_do_ioctl+0x477/0x700 [ 151.323472][ T8236] sock_ioctl+0x997/0xef0 [ 151.327050][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.333081][ T8236] ? sock_poll+0x690/0x690 [ 151.336669][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.341443][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.346210][ T8236] do_syscall_64+0x9f/0x140 [ 151.350994][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.357032][ T8236] RIP: 0033:0x440b89 [ 151.360621][ 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 [ 151.380974][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 151.389326][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 151.397677][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 151.404845][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 151.413147][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 151.421501][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 151.428644][ T8236] [ 151.431052][ T8236] Uninit was stored to memory at: [ 151.435920][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.441937][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.447954][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.452754][ T8236] __msan_memcpy+0x46/0x60 [ 151.457553][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 151.463611][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 151.468414][ T8236] linkmodes_prepare_data+0x244/0x650 [ 151.474402][ T8236] ethnl_default_notify+0x432/0x1030 [ 151.480504][ T8236] ethtool_notify+0x259/0x520 [ 151.485316][ T8236] dev_ethtool+0xe250/0xe7b0 [ 151.490112][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.493707][ T8236] sock_do_ioctl+0x477/0x700 [ 151.498496][ T8236] sock_ioctl+0x997/0xef0 [ 151.503277][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.508075][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.511686][ T8236] do_syscall_64+0x9f/0x140 [ 151.516477][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.522462][ T8236] [ 151.524860][ T8236] Uninit was stored to memory at: [ 151.529641][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.535611][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.541694][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.546537][ T8236] __msan_memcpy+0x46/0x60 [ 151.551339][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 151.556140][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 151.560931][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.565725][ T8236] sock_do_ioctl+0x477/0x700 [ 151.569322][ T8236] sock_ioctl+0x997/0xef0 [ 151.574113][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.578901][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.583680][ T8236] do_syscall_64+0x9f/0x140 [ 151.588499][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.593287][ T8236] [ 151.595683][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 151.604047][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 151.608811][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 151.613597][ T8236] ===================================================== [ 151.620846][ T8236] ===================================================== [ 151.627813][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 151.630802][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 151.630802][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 151.630802][ T8236] Call Trace: [ 151.630802][ T8236] dump_stack+0x24c/0x2e0 [ 151.630802][ T8236] kmsan_report+0xfb/0x1e0 [ 151.630802][ T8236] __msan_warning+0x5c/0xa0 [ 151.630802][ T8236] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 151.630802][ T8236] linkmodes_prepare_data+0x244/0x650 [ 151.630802][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.630802][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 151.630802][ T8236] ethnl_default_notify+0x432/0x1030 [ 151.700246][ T8236] ethtool_notify+0x259/0x520 [ 151.703829][ T8236] dev_ethtool+0xe250/0xe7b0 [ 151.708594][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.714583][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.719382][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 151.725358][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.730127][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.734916][ T8236] sock_do_ioctl+0x477/0x700 [ 151.739700][ T8236] sock_ioctl+0x997/0xef0 [ 151.743282][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 151.749299][ T8236] ? sock_poll+0x690/0x690 [ 151.752887][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.757907][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.762709][ T8236] do_syscall_64+0x9f/0x140 [ 151.767508][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.772347][ T8236] RIP: 0033:0x440b89 [ 151.777151][ 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 [ 151.796306][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 151.804848][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 151.813206][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 151.821675][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 151.828861][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 151.837294][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 151.845654][ T8236] [ 151.848046][ T8236] Uninit was stored to memory at: [ 151.852827][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.858882][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.864949][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.869740][ T8236] __msan_memcpy+0x46/0x60 [ 151.874531][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 151.879318][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 151.885299][ T8236] linkmodes_prepare_data+0x244/0x650 [ 151.890176][ T8236] ethnl_default_notify+0x432/0x1030 [ 151.896176][ T8236] ethtool_notify+0x259/0x520 [ 151.900964][ T8236] dev_ethtool+0xe250/0xe7b0 [ 151.905761][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.909368][ T8236] sock_do_ioctl+0x477/0x700 [ 151.914138][ T8236] sock_ioctl+0x997/0xef0 [ 151.918910][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.923691][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.928459][ T8236] do_syscall_64+0x9f/0x140 [ 151.932046][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 151.938019][ T8236] [ 151.940405][ T8236] Uninit was stored to memory at: [ 151.945269][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 151.951263][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 151.957249][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 151.962034][ T8236] __msan_memcpy+0x46/0x60 [ 151.966828][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 151.972216][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 151.977006][ T8236] dev_ioctl+0x5a3/0x1260 [ 151.980595][ T8236] sock_do_ioctl+0x477/0x700 [ 151.985450][ T8236] sock_ioctl+0x997/0xef0 [ 151.990227][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 151.995020][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 151.999804][ T8236] do_syscall_64+0x9f/0x140 [ 152.004631][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.010610][ T8236] [ 152.011808][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 152.020229][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 152.025009][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 152.029788][ T8236] ===================================================== [ 152.037150][ T8236] ===================================================== [ 152.044154][ T8236] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 152.047106][ T8236] CPU: 0 PID: 8236 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 152.047106][ T8236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 152.047106][ T8236] Call Trace: [ 152.047106][ T8236] dump_stack+0x24c/0x2e0 [ 152.047106][ T8236] kmsan_report+0xfb/0x1e0 [ 152.047106][ T8236] __msan_warning+0x5c/0xa0 [ 152.047106][ T8236] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 152.047106][ T8236] linkmodes_prepare_data+0x244/0x650 [ 152.047106][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 152.047106][ T8236] ? ethnl_set_linkinfo+0xe80/0xe80 [ 152.047106][ T8236] ethnl_default_notify+0x432/0x1030 [ 152.116317][ T8236] ethtool_notify+0x259/0x520 [ 152.121112][ T8236] dev_ethtool+0xe250/0xe7b0 [ 152.125912][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 152.131893][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 152.136702][ T8236] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 152.142657][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 152.147438][ T8236] dev_ioctl+0x5a3/0x1260 [ 152.152252][ T8236] sock_do_ioctl+0x477/0x700 [ 152.157042][ T8236] sock_ioctl+0x997/0xef0 [ 152.161833][ T8236] ? kmsan_get_metadata+0x116/0x180 [ 152.166685][ T8236] ? sock_poll+0x690/0x690 [ 152.171463][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 152.176270][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 152.179871][ T8236] do_syscall_64+0x9f/0x140 [ 152.184649][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.190621][ T8236] RIP: 0033:0x440b89 [ 152.194278][ 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 [ 152.214631][ T8236] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 152.223065][ T8236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 152.231465][ T8236] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 152.239831][ T8236] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 152.247012][ T8236] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 0000000000000000 [ 152.255447][ T8236] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 0000000000000003 [ 152.262607][ T8236] [ 152.265015][ T8236] Uninit was stored to memory at: [ 152.270990][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 152.277045][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.283147][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 152.287967][ T8236] __msan_memcpy+0x46/0x60 [ 152.291635][ T8236] tun_get_link_ksettings+0x7c/0xb0 [ 152.297687][ T8236] __ethtool_get_link_ksettings+0x204/0x5a0 [ 152.303701][ T8236] linkmodes_prepare_data+0x244/0x650 [ 152.308516][ T8236] ethnl_default_notify+0x432/0x1030 [ 152.314510][ T8236] ethtool_notify+0x259/0x520 [ 152.319297][ T8236] dev_ethtool+0xe250/0xe7b0 [ 152.324082][ T8236] dev_ioctl+0x5a3/0x1260 [ 152.327663][ T8236] sock_do_ioctl+0x477/0x700 [ 152.332464][ T8236] sock_ioctl+0x997/0xef0 [ 152.337266][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 152.340856][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 152.345653][ T8236] do_syscall_64+0x9f/0x140 [ 152.350440][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.356431][ T8236] [ 152.358824][ T8236] Uninit was stored to memory at: [ 152.363714][ T8236] kmsan_internal_chain_origin+0xad/0x130 [ 152.369713][ T8236] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.375711][ T8236] kmsan_memcpy_metadata+0xb/0x10 [ 152.380505][ T8236] __msan_memcpy+0x46/0x60 [ 152.385285][ T8236] tun_set_link_ksettings+0x7e/0xb0 [ 152.390063][ T8236] dev_ethtool+0xe1a2/0xe7b0 [ 152.394966][ T8236] dev_ioctl+0x5a3/0x1260 [ 152.399821][ T8236] sock_do_ioctl+0x477/0x700 [ 152.403427][ T8236] sock_ioctl+0x997/0xef0 [ 152.408234][ T8236] __se_sys_ioctl+0x311/0x4d0 [ 152.413108][ T8236] __x64_sys_ioctl+0x4a/0x70 [ 152.417919][ T8236] do_syscall_64+0x9f/0x140 [ 152.422711][ T8236] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.428713][ T8236] [ 152.431124][ T8236] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 152.438347][ T8236] dev_ethtool+0x3cdc/0xe7b0 [ 152.443151][ T8236] dev_ethtool+0x3cdc/0xe7b0 executing program [ 152.447945][ T8236] ===================================================== [ 152.501870][ T8238] ===================================================== [ 152.502955][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 152.502955][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 152.521094][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 152.521094][ T8238] Call Trace: [ 152.521094][ T8238] dump_stack+0x24c/0x2e0 [ 152.521094][ T8238] kmsan_report+0xfb/0x1e0 [ 152.521094][ T8238] __msan_warning+0x5c/0xa0 [ 152.521094][ T8238] __ethtool_get_link_ksettings+0x503/0x5a0 [ 152.521094][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 152.521094][ T8238] ? strset_cleanup_data+0x190/0x190 [ 152.521094][ T8238] ethnl_default_notify+0x432/0x1030 [ 152.521094][ T8238] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 152.521094][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 152.521094][ T8238] ethtool_notify+0x259/0x520 [ 152.521094][ T8238] dev_ethtool+0xe228/0xe7b0 [ 152.521094][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 152.521094][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 152.521094][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 152.521094][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 152.521094][ T8238] dev_ioctl+0x5a3/0x1260 [ 152.521094][ T8238] sock_do_ioctl+0x477/0x700 [ 152.521094][ T8238] sock_ioctl+0x997/0xef0 [ 152.521094][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 152.521094][ T8238] ? sock_poll+0x690/0x690 [ 152.521094][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 152.521094][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 152.521094][ T8238] do_syscall_64+0x9f/0x140 [ 152.521094][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.521094][ T8238] RIP: 0033:0x440b89 [ 152.521094][ T8238] 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 [ 152.673198][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 152.673198][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 152.673198][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 152.673198][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 152.673198][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 152.673198][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 152.673198][ T8238] [ 152.673198][ T8238] Uninit was stored to memory at: [ 152.673198][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 152.673198][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.673198][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 152.673198][ T8238] __msan_memcpy+0x46/0x60 [ 152.673198][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 152.673198][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 152.673198][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 152.673198][ T8238] ethnl_default_notify+0x432/0x1030 [ 152.673198][ T8238] ethtool_notify+0x259/0x520 [ 152.673198][ T8238] dev_ethtool+0xe228/0xe7b0 [ 152.673198][ T8238] dev_ioctl+0x5a3/0x1260 [ 152.673198][ T8238] sock_do_ioctl+0x477/0x700 [ 152.673198][ T8238] sock_ioctl+0x997/0xef0 [ 152.673198][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 152.673198][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 152.673198][ T8238] do_syscall_64+0x9f/0x140 [ 152.673198][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.673198][ T8238] [ 152.673198][ T8238] Uninit was stored to memory at: [ 152.673198][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 152.673198][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 152.673198][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 152.673198][ T8238] __msan_memcpy+0x46/0x60 [ 152.673198][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 152.673198][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 152.673198][ T8238] dev_ioctl+0x5a3/0x1260 [ 152.673198][ T8238] sock_do_ioctl+0x477/0x700 [ 152.673198][ T8238] sock_ioctl+0x997/0xef0 [ 152.673198][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 152.673198][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 152.673198][ T8238] do_syscall_64+0x9f/0x140 [ 152.673198][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 152.673198][ T8238] [ 152.673198][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 152.673198][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 152.673198][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 152.673198][ T8238] ===================================================== [ 152.925273][ T8238] ===================================================== [ 152.932308][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 152.934821][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 152.934821][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 152.934821][ T8238] Call Trace: [ 152.934821][ T8238] dump_stack+0x24c/0x2e0 [ 152.934821][ T8238] kmsan_report+0xfb/0x1e0 [ 152.934821][ T8238] __msan_warning+0x5c/0xa0 [ 152.934821][ T8238] __ethtool_get_link_ksettings+0x510/0x5a0 [ 152.934821][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 152.934821][ T8238] ? strset_cleanup_data+0x190/0x190 [ 152.934821][ T8238] ethnl_default_notify+0x432/0x1030 [ 152.934821][ T8238] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 153.005765][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.010316][ T8238] ethtool_notify+0x259/0x520 [ 153.015099][ T8238] dev_ethtool+0xe228/0xe7b0 [ 153.019870][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.024647][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.029544][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 153.035659][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.041659][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.045302][ T8238] sock_do_ioctl+0x477/0x700 [ 153.050104][ T8238] sock_ioctl+0x997/0xef0 [ 153.054909][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.059702][ T8238] ? sock_poll+0x690/0x690 [ 153.064553][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.069332][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.073067][ T8238] do_syscall_64+0x9f/0x140 [ 153.077718][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.083857][ T8238] RIP: 0033:0x440b89 [ 153.088690][ T8238] 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 [ 153.108113][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 153.116493][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 153.123643][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 153.131999][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 153.140424][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 153.147596][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 153.155954][ T8238] [ 153.158344][ T8238] Uninit was stored to memory at: [ 153.163359][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 153.169436][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.175510][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 153.180316][ T8238] __msan_memcpy+0x46/0x60 [ 153.185107][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 153.189967][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 153.196052][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.200848][ T8238] ethnl_default_notify+0x432/0x1030 [ 153.206950][ T8238] ethtool_notify+0x259/0x520 [ 153.211725][ T8238] dev_ethtool+0xe228/0xe7b0 [ 153.215310][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.220102][ T8238] sock_do_ioctl+0x477/0x700 [ 153.224875][ T8238] sock_ioctl+0x997/0xef0 [ 153.229652][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.234452][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.239216][ T8238] do_syscall_64+0x9f/0x140 [ 153.243198][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.248802][ T8238] [ 153.251196][ T8238] Uninit was stored to memory at: [ 153.255964][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 153.261919][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.268084][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 153.273048][ T8238] __msan_memcpy+0x46/0x60 [ 153.277646][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 153.283201][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 153.287216][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.291998][ T8238] sock_do_ioctl+0x477/0x700 [ 153.296816][ T8238] sock_ioctl+0x997/0xef0 [ 153.300401][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.305189][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.309984][ T8238] do_syscall_64+0x9f/0x140 [ 153.314800][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.320768][ T8238] [ 153.323107][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 153.330477][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 153.335265][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 153.338849][ T8238] ===================================================== [ 153.347138][ T8238] ===================================================== [ 153.354067][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 153.357089][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 153.357089][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 153.373099][ T8238] Call Trace: [ 153.373099][ T8238] dump_stack+0x24c/0x2e0 [ 153.373099][ T8238] kmsan_report+0xfb/0x1e0 [ 153.373099][ T8238] __msan_warning+0x5c/0xa0 [ 153.373099][ T8238] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 153.403096][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.403096][ T8238] ? strset_cleanup_data+0x190/0x190 [ 153.403096][ T8238] ethnl_default_notify+0x432/0x1030 [ 153.403096][ T8238] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 153.428482][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.434471][ T8238] ethtool_notify+0x259/0x520 [ 153.439264][ T8238] dev_ethtool+0xe228/0xe7b0 [ 153.443214][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.448829][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.453628][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 153.459630][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.464546][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.469322][ T8238] sock_do_ioctl+0x477/0x700 [ 153.474114][ T8238] sock_ioctl+0x997/0xef0 [ 153.477700][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.483699][ T8238] ? sock_poll+0x690/0x690 [ 153.487279][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.492056][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.496848][ T8238] do_syscall_64+0x9f/0x140 [ 153.501635][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.507608][ T8238] RIP: 0033:0x440b89 [ 153.511204][ T8238] 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 [ 153.531668][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 153.540036][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 153.547198][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 153.555978][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 153.563317][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 153.571837][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 153.580429][ T8238] [ 153.581635][ T8238] Uninit was stored to memory at: [ 153.587620][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 153.593059][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.598406][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 153.604526][ T8238] __msan_memcpy+0x46/0x60 [ 153.608114][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 153.614105][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 153.620099][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.624868][ T8238] ethnl_default_notify+0x432/0x1030 [ 153.629648][ T8238] ethtool_notify+0x259/0x520 [ 153.634455][ T8238] dev_ethtool+0xe228/0xe7b0 [ 153.639229][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.643996][ T8238] sock_do_ioctl+0x477/0x700 [ 153.648785][ T8238] sock_ioctl+0x997/0xef0 [ 153.653053][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.657171][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.661944][ T8238] do_syscall_64+0x9f/0x140 [ 153.666913][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.673023][ T8238] [ 153.675279][ T8238] Uninit was stored to memory at: [ 153.680057][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 153.686084][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 153.692036][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 153.696833][ T8238] __msan_memcpy+0x46/0x60 [ 153.700414][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 153.706397][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 153.711175][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.714811][ T8238] sock_do_ioctl+0x477/0x700 [ 153.719883][ T8238] sock_ioctl+0x997/0xef0 [ 153.723474][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.728244][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.733206][ T8238] do_syscall_64+0x9f/0x140 [ 153.737995][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.743988][ T8238] [ 153.746387][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 153.753562][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 153.758358][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 153.763362][ T8238] ===================================================== [ 153.770671][ T8238] ===================================================== [ 153.777625][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 153.780622][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 153.793049][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 153.793049][ T8238] Call Trace: [ 153.793049][ T8238] dump_stack+0x24c/0x2e0 [ 153.793049][ T8238] kmsan_report+0xfb/0x1e0 [ 153.793049][ T8238] __msan_warning+0x5c/0xa0 [ 153.793049][ T8238] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 153.823099][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 153.823099][ T8238] ? strset_cleanup_data+0x190/0x190 [ 153.823099][ T8238] ethnl_default_notify+0x432/0x1030 [ 153.823099][ T8238] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 153.850741][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.855627][ T8238] ethtool_notify+0x259/0x520 [ 153.860402][ T8238] dev_ethtool+0xe228/0xe7b0 [ 153.865223][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.870007][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.875985][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 153.880773][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.886923][ T8238] dev_ioctl+0x5a3/0x1260 [ 153.890504][ T8238] sock_do_ioctl+0x477/0x700 [ 153.895283][ T8238] sock_ioctl+0x997/0xef0 [ 153.900058][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 153.904814][ T8238] ? sock_poll+0x690/0x690 [ 153.909582][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 153.914412][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 153.919181][ T8238] do_syscall_64+0x9f/0x140 [ 153.923204][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 153.928721][ T8238] RIP: 0033:0x440b89 [ 153.933486][ T8238] 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 [ 153.953142][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 153.961509][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 153.968679][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 153.977031][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 153.984324][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 153.993217][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 154.001036][ T8238] [ 154.003407][ T8238] Uninit was stored to memory at: [ 154.008165][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.014129][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.020115][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.024909][ T8238] __msan_memcpy+0x46/0x60 [ 154.029725][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 154.034502][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 154.040487][ T8238] linkinfo_prepare_data+0x1e8/0x4b0 [ 154.046452][ T8238] ethnl_default_notify+0x432/0x1030 [ 154.051228][ T8238] ethtool_notify+0x259/0x520 [ 154.057197][ T8238] dev_ethtool+0xe228/0xe7b0 [ 154.060773][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.065709][ T8238] sock_do_ioctl+0x477/0x700 [ 154.070477][ T8238] sock_ioctl+0x997/0xef0 [ 154.074072][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.078850][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.083633][ T8238] do_syscall_64+0x9f/0x140 [ 154.088427][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.094464][ T8238] [ 154.096851][ T8238] Uninit was stored to memory at: [ 154.101625][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.107609][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.113599][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.118396][ T8238] __msan_memcpy+0x46/0x60 [ 154.123316][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 154.128091][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 154.133046][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.137666][ T8238] sock_do_ioctl+0x477/0x700 [ 154.141256][ T8238] sock_ioctl+0x997/0xef0 [ 154.146046][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.150817][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.155637][ T8238] do_syscall_64+0x9f/0x140 [ 154.159226][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.165276][ T8238] [ 154.167666][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 154.176031][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 154.180809][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 154.184544][ T8238] ===================================================== [ 154.192861][ T8238] ===================================================== [ 154.199883][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 154.202611][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 154.213054][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.213054][ T8238] Call Trace: [ 154.213054][ T8238] dump_stack+0x24c/0x2e0 [ 154.213054][ T8238] kmsan_report+0xfb/0x1e0 [ 154.213054][ T8238] __msan_warning+0x5c/0xa0 [ 154.243096][ T8238] __ethtool_get_link_ksettings+0x503/0x5a0 [ 154.243096][ T8238] linkmodes_prepare_data+0x244/0x650 [ 154.243096][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.243096][ T8238] ? ethnl_set_linkinfo+0xe80/0xe80 [ 154.243096][ T8238] ethnl_default_notify+0x432/0x1030 [ 154.271868][ T8238] ethtool_notify+0x259/0x520 [ 154.276792][ T8238] dev_ethtool+0xe250/0xe7b0 [ 154.280379][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.286345][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.291152][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 154.297138][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.301922][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.306916][ T8238] sock_do_ioctl+0x477/0x700 [ 154.311699][ T8238] sock_ioctl+0x997/0xef0 [ 154.315292][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.321265][ T8238] ? sock_poll+0x690/0x690 [ 154.324861][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.329704][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.334793][ T8238] do_syscall_64+0x9f/0x140 [ 154.339571][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.345710][ T8238] RIP: 0033:0x440b89 [ 154.349279][ T8238] 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 [ 154.368441][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 154.376797][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 154.385164][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 154.393537][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 154.400714][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 154.409214][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 154.416424][ T8238] [ 154.418766][ T8238] Uninit was stored to memory at: [ 154.424741][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.429529][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.435571][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.441549][ T8238] __msan_memcpy+0x46/0x60 [ 154.445135][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 154.451105][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 154.455893][ T8238] linkmodes_prepare_data+0x244/0x650 [ 154.462084][ T8238] ethnl_default_notify+0x432/0x1030 [ 154.467269][ T8238] ethtool_notify+0x259/0x520 [ 154.472034][ T8238] dev_ethtool+0xe250/0xe7b0 [ 154.476856][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.480476][ T8238] sock_do_ioctl+0x477/0x700 [ 154.485262][ T8238] sock_ioctl+0x997/0xef0 [ 154.490032][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.494815][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.499593][ T8238] do_syscall_64+0x9f/0x140 [ 154.504517][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.510485][ T8238] [ 154.513036][ T8238] Uninit was stored to memory at: [ 154.517668][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.523644][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.529617][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.534424][ T8238] __msan_memcpy+0x46/0x60 [ 154.539190][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 154.543967][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 154.548755][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.553049][ T8238] sock_do_ioctl+0x477/0x700 [ 154.557142][ T8238] sock_ioctl+0x997/0xef0 [ 154.561916][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.566922][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.570507][ T8238] do_syscall_64+0x9f/0x140 [ 154.575302][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.581269][ T8238] [ 154.583661][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 154.592089][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 154.596138][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 154.600929][ T8238] ===================================================== [ 154.608429][ T8238] ===================================================== [ 154.615412][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 154.618382][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 154.633052][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 154.633052][ T8238] Call Trace: [ 154.633052][ T8238] dump_stack+0x24c/0x2e0 [ 154.633052][ T8238] kmsan_report+0xfb/0x1e0 [ 154.633052][ T8238] __msan_warning+0x5c/0xa0 [ 154.633052][ T8238] __ethtool_get_link_ksettings+0x510/0x5a0 [ 154.663093][ T8238] linkmodes_prepare_data+0x244/0x650 [ 154.663093][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.663093][ T8238] ? ethnl_set_linkinfo+0xe80/0xe80 [ 154.663093][ T8238] ethnl_default_notify+0x432/0x1030 [ 154.687700][ T8238] ethtool_notify+0x259/0x520 [ 154.691298][ T8238] dev_ethtool+0xe250/0xe7b0 [ 154.696124][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.702120][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.706980][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 154.713096][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.717754][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.722531][ T8238] sock_do_ioctl+0x477/0x700 [ 154.727328][ T8238] sock_ioctl+0x997/0xef0 [ 154.730920][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 154.735912][ T8238] ? sock_poll+0x690/0x690 [ 154.740727][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.745749][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.750613][ T8238] do_syscall_64+0x9f/0x140 [ 154.754331][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.760354][ T8238] RIP: 0033:0x440b89 [ 154.765135][ T8238] 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 [ 154.784560][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 154.793064][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 154.800132][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 154.808690][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 154.817069][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 154.824446][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 154.833094][ T8238] [ 154.835253][ T8238] Uninit was stored to memory at: [ 154.840034][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.846042][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.852017][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.857175][ T8238] __msan_memcpy+0x46/0x60 [ 154.860760][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 154.866916][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 154.871715][ T8238] linkmodes_prepare_data+0x244/0x650 [ 154.877681][ T8238] ethnl_default_notify+0x432/0x1030 [ 154.883213][ T8238] ethtool_notify+0x259/0x520 [ 154.887246][ T8238] dev_ethtool+0xe250/0xe7b0 [ 154.892024][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.896844][ T8238] sock_do_ioctl+0x477/0x700 [ 154.901707][ T8238] sock_ioctl+0x997/0xef0 [ 154.905308][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.910181][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.914976][ T8238] do_syscall_64+0x9f/0x140 [ 154.919762][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.925769][ T8238] [ 154.928179][ T8238] Uninit was stored to memory at: [ 154.933101][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 154.938932][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 154.944909][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 154.949691][ T8238] __msan_memcpy+0x46/0x60 [ 154.954452][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 154.959233][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 154.964013][ T8238] dev_ioctl+0x5a3/0x1260 [ 154.968796][ T8238] sock_do_ioctl+0x477/0x700 [ 154.973576][ T8238] sock_ioctl+0x997/0xef0 [ 154.978350][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 154.981920][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 154.987231][ T8238] do_syscall_64+0x9f/0x140 [ 154.991997][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 154.998014][ T8238] [ 155.000403][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.007556][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.012317][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.019498][ T8238] ===================================================== [ 155.027475][ T8238] ===================================================== [ 155.034435][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 155.037427][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 155.037427][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.037427][ T8238] Call Trace: [ 155.037427][ T8238] dump_stack+0x24c/0x2e0 [ 155.037427][ T8238] kmsan_report+0xfb/0x1e0 [ 155.037427][ T8238] __msan_warning+0x5c/0xa0 [ 155.037427][ T8238] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 155.037427][ T8238] linkmodes_prepare_data+0x244/0x650 [ 155.037427][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.037427][ T8238] ? ethnl_set_linkinfo+0xe80/0xe80 [ 155.037427][ T8238] ethnl_default_notify+0x432/0x1030 [ 155.105778][ T8238] ethtool_notify+0x259/0x520 [ 155.110557][ T8238] dev_ethtool+0xe250/0xe7b0 [ 155.115371][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.120151][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.126127][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 155.132093][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.136850][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.141626][ T8238] sock_do_ioctl+0x477/0x700 [ 155.146414][ T8238] sock_ioctl+0x997/0xef0 [ 155.149995][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.156011][ T8238] ? sock_poll+0x690/0x690 [ 155.160799][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.165710][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.170484][ T8238] do_syscall_64+0x9f/0x140 [ 155.174083][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.180086][ T8238] RIP: 0033:0x440b89 [ 155.184874][ T8238] 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 [ 155.204034][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.212399][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 155.220780][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.228110][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.236473][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 155.244889][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 155.252078][ T8238] [ 155.254556][ T8238] Uninit was stored to memory at: [ 155.259331][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 155.265319][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.271285][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 155.276080][ T8238] __msan_memcpy+0x46/0x60 [ 155.283343][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 155.289344][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.295321][ T8238] linkmodes_prepare_data+0x244/0x650 [ 155.300092][ T8238] ethnl_default_notify+0x432/0x1030 [ 155.306081][ T8238] ethtool_notify+0x259/0x520 [ 155.310858][ T8238] dev_ethtool+0xe250/0xe7b0 [ 155.315643][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.319226][ T8238] sock_do_ioctl+0x477/0x700 [ 155.324013][ T8238] sock_ioctl+0x997/0xef0 [ 155.328794][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.333573][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.338353][ T8238] do_syscall_64+0x9f/0x140 [ 155.341921][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.348109][ T8238] [ 155.350529][ T8238] Uninit was stored to memory at: [ 155.355281][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 155.361260][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.367236][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 155.372001][ T8238] __msan_memcpy+0x46/0x60 [ 155.377154][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 155.381923][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 155.386898][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.390475][ T8238] sock_do_ioctl+0x477/0x700 [ 155.395252][ T8238] sock_ioctl+0x997/0xef0 [ 155.400031][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.404810][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.408389][ T8238] do_syscall_64+0x9f/0x140 [ 155.413222][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.419177][ T8238] [ 155.421569][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.428726][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.433492][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.438282][ T8238] ===================================================== [ 155.446146][ T8238] ===================================================== [ 155.453117][ T8238] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 155.456100][ T8238] CPU: 1 PID: 8238 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 155.456100][ T8238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.456100][ T8238] Call Trace: [ 155.456100][ T8238] dump_stack+0x24c/0x2e0 [ 155.456100][ T8238] kmsan_report+0xfb/0x1e0 [ 155.456100][ T8238] __msan_warning+0x5c/0xa0 [ 155.456100][ T8238] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 155.456100][ T8238] linkmodes_prepare_data+0x244/0x650 [ 155.456100][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.456100][ T8238] ? ethnl_set_linkinfo+0xe80/0xe80 [ 155.456100][ T8238] ethnl_default_notify+0x432/0x1030 [ 155.524488][ T8238] ethtool_notify+0x259/0x520 [ 155.529290][ T8238] dev_ethtool+0xe250/0xe7b0 [ 155.534075][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.538861][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.544874][ T8238] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 155.550847][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.555636][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.560416][ T8238] sock_do_ioctl+0x477/0x700 [ 155.563997][ T8238] sock_ioctl+0x997/0xef0 [ 155.568909][ T8238] ? kmsan_get_metadata+0x116/0x180 [ 155.573811][ T8238] ? sock_poll+0x690/0x690 [ 155.578614][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.583421][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.588233][ T8238] do_syscall_64+0x9f/0x140 [ 155.591812][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.597920][ T8238] RIP: 0033:0x440b89 [ 155.602700][ T8238] 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 [ 155.621830][ T8238] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.630380][ T8238] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 155.638756][ T8238] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.645959][ T8238] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.654428][ T8238] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 000000000002468e [ 155.662799][ T8238] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 155.669989][ T8238] [ 155.673217][ T8238] Uninit was stored to memory at: [ 155.677188][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 155.683313][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.689290][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 155.694068][ T8238] __msan_memcpy+0x46/0x60 [ 155.698853][ T8238] tun_get_link_ksettings+0x7c/0xb0 [ 155.703636][ T8238] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.709621][ T8238] linkmodes_prepare_data+0x244/0x650 [ 155.715620][ T8238] ethnl_default_notify+0x432/0x1030 [ 155.720399][ T8238] ethtool_notify+0x259/0x520 [ 155.725193][ T8238] dev_ethtool+0xe250/0xe7b0 [ 155.729984][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.733771][ T8238] sock_do_ioctl+0x477/0x700 [ 155.738557][ T8238] sock_ioctl+0x997/0xef0 [ 155.743379][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.748171][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.752963][ T8238] do_syscall_64+0x9f/0x140 [ 155.761329][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.767338][ T8238] [ 155.769742][ T8238] Uninit was stored to memory at: [ 155.774520][ T8238] kmsan_internal_chain_origin+0xad/0x130 [ 155.780489][ T8238] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.786453][ T8238] kmsan_memcpy_metadata+0xb/0x10 [ 155.791227][ T8238] __msan_memcpy+0x46/0x60 [ 155.796009][ T8238] tun_set_link_ksettings+0x7e/0xb0 [ 155.800775][ T8238] dev_ethtool+0xe1a2/0xe7b0 [ 155.805719][ T8238] dev_ioctl+0x5a3/0x1260 [ 155.809341][ T8238] sock_do_ioctl+0x477/0x700 [ 155.814141][ T8238] sock_ioctl+0x997/0xef0 [ 155.818933][ T8238] __se_sys_ioctl+0x311/0x4d0 [ 155.823722][ T8238] __x64_sys_ioctl+0x4a/0x70 [ 155.828506][ T8238] do_syscall_64+0x9f/0x140 [ 155.833053][ T8238] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.838028][ T8238] [ 155.840419][ T8238] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.848795][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.853582][ T8238] dev_ethtool+0x3cdc/0xe7b0 [ 155.857157][ T8238] ===================================================== executing program [ 155.905045][ T8239] ===================================================== [ 155.912088][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 155.912980][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 155.912980][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.912980][ T8239] Call Trace: [ 155.912980][ T8239] dump_stack+0x24c/0x2e0 [ 155.912980][ T8239] kmsan_report+0xfb/0x1e0 [ 155.912980][ T8239] __msan_warning+0x5c/0xa0 [ 155.912980][ T8239] __ethtool_get_link_ksettings+0x503/0x5a0 [ 155.912980][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 155.912980][ T8239] ? strset_cleanup_data+0x190/0x190 [ 155.912980][ T8239] ethnl_default_notify+0x432/0x1030 [ 155.912980][ T8239] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 155.912980][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 155.912980][ T8239] ethtool_notify+0x259/0x520 [ 155.912980][ T8239] dev_ethtool+0xe228/0xe7b0 [ 155.912980][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 155.912980][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 155.912980][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 155.912980][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 155.912980][ T8239] dev_ioctl+0x5a3/0x1260 [ 155.912980][ T8239] sock_do_ioctl+0x477/0x700 [ 155.912980][ T8239] sock_ioctl+0x997/0xef0 [ 155.912980][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 155.912980][ T8239] ? sock_poll+0x690/0x690 [ 155.912980][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 155.912980][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 155.912980][ T8239] do_syscall_64+0x9f/0x140 [ 155.912980][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.912980][ T8239] RIP: 0033:0x440b89 [ 155.912980][ T8239] 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 [ 155.912980][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 155.912980][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 155.912980][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 155.912980][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 155.912980][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 155.912980][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 155.912980][ T8239] [ 155.912980][ T8239] Uninit was stored to memory at: [ 155.912980][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 155.912980][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.912980][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 155.912980][ T8239] __msan_memcpy+0x46/0x60 [ 155.912980][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 155.912980][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 155.912980][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 155.912980][ T8239] ethnl_default_notify+0x432/0x1030 [ 155.912980][ T8239] ethtool_notify+0x259/0x520 [ 155.912980][ T8239] dev_ethtool+0xe228/0xe7b0 [ 155.912980][ T8239] dev_ioctl+0x5a3/0x1260 [ 155.912980][ T8239] sock_do_ioctl+0x477/0x700 [ 155.912980][ T8239] sock_ioctl+0x997/0xef0 [ 155.912980][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 155.912980][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 155.912980][ T8239] do_syscall_64+0x9f/0x140 [ 155.912980][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.912980][ T8239] [ 155.912980][ T8239] Uninit was stored to memory at: [ 155.912980][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 155.912980][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 155.912980][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 155.912980][ T8239] __msan_memcpy+0x46/0x60 [ 155.912980][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 155.912980][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 155.912980][ T8239] dev_ioctl+0x5a3/0x1260 [ 155.912980][ T8239] sock_do_ioctl+0x477/0x700 [ 155.912980][ T8239] sock_ioctl+0x997/0xef0 [ 155.912980][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 155.912980][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 155.912980][ T8239] do_syscall_64+0x9f/0x140 [ 155.912980][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 155.912980][ T8239] [ 155.912980][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 155.912980][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 155.912980][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 155.912980][ T8239] ===================================================== [ 156.329216][ T8239] ===================================================== [ 156.336185][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 156.338820][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 156.338820][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 156.338820][ T8239] Call Trace: [ 156.338820][ T8239] dump_stack+0x24c/0x2e0 [ 156.338820][ T8239] kmsan_report+0xfb/0x1e0 [ 156.338820][ T8239] __msan_warning+0x5c/0xa0 [ 156.338820][ T8239] __ethtool_get_link_ksettings+0x510/0x5a0 [ 156.338820][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 156.338820][ T8239] ? strset_cleanup_data+0x190/0x190 [ 156.338820][ T8239] ethnl_default_notify+0x432/0x1030 [ 156.338820][ T8239] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 156.338820][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.414927][ T8239] ethtool_notify+0x259/0x520 [ 156.418505][ T8239] dev_ethtool+0xe228/0xe7b0 [ 156.423300][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.429283][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.434084][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 156.441254][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.446037][ T8239] dev_ioctl+0x5a3/0x1260 [ 156.450820][ T8239] sock_do_ioctl+0x477/0x700 [ 156.455584][ T8239] sock_ioctl+0x997/0xef0 [ 156.459166][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.465152][ T8239] ? sock_poll+0x690/0x690 [ 156.468738][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 156.473521][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 156.478301][ T8239] do_syscall_64+0x9f/0x140 [ 156.483152][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.489123][ T8239] RIP: 0033:0x440b89 [ 156.493911][ T8239] 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 [ 156.513078][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 156.521483][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 156.529793][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 156.536952][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 156.545318][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 156.553691][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 156.560844][ T8239] [ 156.563228][ T8239] Uninit was stored to memory at: [ 156.569197][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 156.574085][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 156.580098][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 156.584892][ T8239] __msan_memcpy+0x46/0x60 [ 156.589769][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 156.595762][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 156.601749][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 156.606578][ T8239] ethnl_default_notify+0x432/0x1030 [ 156.611369][ T8239] ethtool_notify+0x259/0x520 [ 156.616165][ T8239] dev_ethtool+0xe228/0xe7b0 [ 156.620951][ T8239] dev_ioctl+0x5a3/0x1260 [ 156.625739][ T8239] sock_do_ioctl+0x477/0x700 [ 156.631718][ T8239] sock_ioctl+0x997/0xef0 [ 156.636492][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 156.641273][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 156.646047][ T8239] do_syscall_64+0x9f/0x140 [ 156.650829][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.656791][ T8239] [ 156.659186][ T8239] Uninit was stored to memory at: [ 156.663969][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 156.671175][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 156.677138][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 156.681913][ T8239] __msan_memcpy+0x46/0x60 [ 156.686723][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 156.691503][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 156.696279][ T8239] dev_ioctl+0x5a3/0x1260 [ 156.699857][ T8239] sock_do_ioctl+0x477/0x700 [ 156.704629][ T8239] sock_ioctl+0x997/0xef0 [ 156.709395][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 156.714168][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 156.718965][ T8239] do_syscall_64+0x9f/0x140 [ 156.722543][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.728524][ T8239] [ 156.730915][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 156.739391][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 156.743065][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 156.747846][ T8239] ===================================================== [ 156.756146][ T8239] ===================================================== [ 156.763176][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 156.765898][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 156.765898][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 156.765898][ T8239] Call Trace: [ 156.765898][ T8239] dump_stack+0x24c/0x2e0 [ 156.765898][ T8239] kmsan_report+0xfb/0x1e0 [ 156.765898][ T8239] __msan_warning+0x5c/0xa0 [ 156.765898][ T8239] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 156.765898][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 156.765898][ T8239] ? strset_cleanup_data+0x190/0x190 [ 156.765898][ T8239] ethnl_default_notify+0x432/0x1030 [ 156.765898][ T8239] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 156.835921][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.841886][ T8239] ethtool_notify+0x259/0x520 [ 156.845513][ T8239] dev_ethtool+0xe228/0xe7b0 [ 156.850288][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.856277][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.861135][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 156.867196][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.873151][ T8239] dev_ioctl+0x5a3/0x1260 [ 156.876737][ T8239] sock_do_ioctl+0x477/0x700 [ 156.881511][ T8239] sock_ioctl+0x997/0xef0 [ 156.886293][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 156.891088][ T8239] ? sock_poll+0x690/0x690 [ 156.895979][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 156.900792][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 156.905546][ T8239] do_syscall_64+0x9f/0x140 [ 156.910320][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 156.916319][ T8239] RIP: 0033:0x440b89 [ 156.919942][ T8239] 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 [ 156.939157][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 156.947535][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 156.955918][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 156.964352][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 156.971525][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 156.979874][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 156.988224][ T8239] [ 156.990683][ T8239] Uninit was stored to memory at: [ 156.995534][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.001529][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.007519][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.012300][ T8239] __msan_memcpy+0x46/0x60 [ 157.017093][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 157.021869][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 157.027901][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 157.032682][ T8239] ethnl_default_notify+0x432/0x1030 [ 157.038646][ T8239] ethtool_notify+0x259/0x520 [ 157.043407][ T8239] dev_ethtool+0xe228/0xe7b0 [ 157.047010][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.051787][ T8239] sock_do_ioctl+0x477/0x700 [ 157.056647][ T8239] sock_ioctl+0x997/0xef0 [ 157.060243][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.065022][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.069796][ T8239] do_syscall_64+0x9f/0x140 [ 157.074586][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.080550][ T8239] [ 157.082933][ T8239] Uninit was stored to memory at: [ 157.087716][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.093690][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.099647][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.104401][ T8239] __msan_memcpy+0x46/0x60 [ 157.109168][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 157.113997][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 157.118785][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.123557][ T8239] sock_do_ioctl+0x477/0x700 [ 157.128329][ T8239] sock_ioctl+0x997/0xef0 [ 157.131915][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.136741][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.141523][ T8239] do_syscall_64+0x9f/0x140 [ 157.146302][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.152257][ T8239] [ 157.154649][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 157.161815][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 157.166668][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 157.171492][ T8239] ===================================================== [ 157.179005][ T8239] ===================================================== [ 157.185961][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 157.188884][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 157.188884][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.188884][ T8239] Call Trace: [ 157.188884][ T8239] dump_stack+0x24c/0x2e0 [ 157.188884][ T8239] kmsan_report+0xfb/0x1e0 [ 157.188884][ T8239] __msan_warning+0x5c/0xa0 [ 157.188884][ T8239] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 157.188884][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 157.188884][ T8239] ? strset_cleanup_data+0x190/0x190 [ 157.188884][ T8239] ethnl_default_notify+0x432/0x1030 [ 157.257771][ T8239] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 157.263756][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.268524][ T8239] ethtool_notify+0x259/0x520 [ 157.273285][ T8239] dev_ethtool+0xe228/0xe7b0 [ 157.278046][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.282825][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.287600][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 157.293570][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.299532][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.303143][ T8239] sock_do_ioctl+0x477/0x700 [ 157.307959][ T8239] sock_ioctl+0x997/0xef0 [ 157.312725][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.317510][ T8239] ? sock_poll+0x690/0x690 [ 157.322268][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.327050][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.331827][ T8239] do_syscall_64+0x9f/0x140 [ 157.335484][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.341449][ T8239] RIP: 0033:0x440b89 [ 157.346229][ T8239] 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 [ 157.365324][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 157.373690][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 157.382025][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 157.389174][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 157.397536][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 157.405884][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 157.414285][ T8239] [ 157.416675][ T8239] Uninit was stored to memory at: [ 157.421631][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.427627][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.433618][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.438403][ T8239] __msan_memcpy+0x46/0x60 [ 157.443143][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 157.448005][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 157.454022][ T8239] linkinfo_prepare_data+0x1e8/0x4b0 [ 157.458818][ T8239] ethnl_default_notify+0x432/0x1030 [ 157.464801][ T8239] ethtool_notify+0x259/0x520 [ 157.468402][ T8239] dev_ethtool+0xe228/0xe7b0 [ 157.473145][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.477939][ T8239] sock_do_ioctl+0x477/0x700 [ 157.482731][ T8239] sock_ioctl+0x997/0xef0 [ 157.486324][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.491110][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.495896][ T8239] do_syscall_64+0x9f/0x140 [ 157.500668][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.506717][ T8239] [ 157.509098][ T8239] Uninit was stored to memory at: [ 157.513898][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.519862][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.525831][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.530615][ T8239] __msan_memcpy+0x46/0x60 [ 157.535468][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 157.540242][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 157.545023][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.549792][ T8239] sock_do_ioctl+0x477/0x700 [ 157.553371][ T8239] sock_ioctl+0x997/0xef0 [ 157.558143][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.562920][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.567714][ T8239] do_syscall_64+0x9f/0x140 [ 157.572525][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.578490][ T8239] [ 157.579686][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 157.588134][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 157.592934][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 157.597730][ T8239] ===================================================== [ 157.605323][ T8239] ===================================================== [ 157.612292][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x503/0x5a0 [ 157.614942][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 157.614942][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.614942][ T8239] Call Trace: [ 157.614942][ T8239] dump_stack+0x24c/0x2e0 [ 157.614942][ T8239] kmsan_report+0xfb/0x1e0 [ 157.614942][ T8239] __msan_warning+0x5c/0xa0 [ 157.614942][ T8239] __ethtool_get_link_ksettings+0x503/0x5a0 [ 157.614942][ T8239] linkmodes_prepare_data+0x244/0x650 [ 157.614942][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.614942][ T8239] ? ethnl_set_linkinfo+0xe80/0xe80 [ 157.614942][ T8239] ethnl_default_notify+0x432/0x1030 [ 157.614942][ T8239] ethtool_notify+0x259/0x520 [ 157.614942][ T8239] dev_ethtool+0xe250/0xe7b0 [ 157.693401][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.698180][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.704150][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 157.710116][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.714898][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.719667][ T8239] sock_do_ioctl+0x477/0x700 [ 157.724440][ T8239] sock_ioctl+0x997/0xef0 [ 157.728019][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 157.734027][ T8239] ? sock_poll+0x690/0x690 [ 157.737609][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.742392][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.747170][ T8239] do_syscall_64+0x9f/0x140 [ 157.751951][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.757931][ T8239] RIP: 0033:0x440b89 [ 157.762789][ T8239] 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 [ 157.781951][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 157.790339][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 157.798734][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 157.805907][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 157.814307][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 157.822644][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 157.829826][ T8239] [ 157.832206][ T8239] Uninit was stored to memory at: [ 157.838193][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.842954][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.848942][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.854919][ T8239] __msan_memcpy+0x46/0x60 [ 157.858644][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 157.864681][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 157.869503][ T8239] linkmodes_prepare_data+0x244/0x650 [ 157.875568][ T8239] ethnl_default_notify+0x432/0x1030 [ 157.880365][ T8239] ethtool_notify+0x259/0x520 [ 157.885144][ T8239] dev_ethtool+0xe250/0xe7b0 [ 157.889931][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.894760][ T8239] sock_do_ioctl+0x477/0x700 [ 157.899587][ T8239] sock_ioctl+0x997/0xef0 [ 157.903232][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.908024][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.912817][ T8239] do_syscall_64+0x9f/0x140 [ 157.917607][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.923589][ T8239] [ 157.925994][ T8239] Uninit was stored to memory at: [ 157.930790][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 157.935551][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 157.942712][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 157.947498][ T8239] __msan_memcpy+0x46/0x60 [ 157.951083][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 157.957062][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 157.961838][ T8239] dev_ioctl+0x5a3/0x1260 [ 157.965519][ T8239] sock_do_ioctl+0x477/0x700 [ 157.970270][ T8239] sock_ioctl+0x997/0xef0 [ 157.975051][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 157.979824][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 157.983394][ T8239] do_syscall_64+0x9f/0x140 [ 157.988181][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 157.994140][ T8239] [ 157.996530][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 158.004857][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.008432][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.013184][ T8239] ===================================================== [ 158.021256][ T8239] ===================================================== [ 158.028905][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x510/0x5a0 [ 158.031148][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 158.031148][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 158.031148][ T8239] Call Trace: [ 158.031148][ T8239] dump_stack+0x24c/0x2e0 [ 158.031148][ T8239] kmsan_report+0xfb/0x1e0 [ 158.031148][ T8239] __msan_warning+0x5c/0xa0 [ 158.031148][ T8239] __ethtool_get_link_ksettings+0x510/0x5a0 [ 158.031148][ T8239] linkmodes_prepare_data+0x244/0x650 [ 158.031148][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.031148][ T8239] ? ethnl_set_linkinfo+0xe80/0xe80 [ 158.095563][ T8239] ethnl_default_notify+0x432/0x1030 [ 158.100350][ T8239] ethtool_notify+0x259/0x520 [ 158.105213][ T8239] dev_ethtool+0xe250/0xe7b0 [ 158.109988][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.114767][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.119542][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 158.125531][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.131528][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.135112][ T8239] sock_do_ioctl+0x477/0x700 [ 158.139882][ T8239] sock_ioctl+0x997/0xef0 [ 158.144655][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.149466][ T8239] ? sock_poll+0x690/0x690 [ 158.154294][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.159066][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.162651][ T8239] do_syscall_64+0x9f/0x140 [ 158.167435][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.173403][ T8239] RIP: 0033:0x440b89 [ 158.176989][ T8239] 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 [ 158.198491][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 158.206836][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 158.215217][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 158.222370][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 158.230767][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 158.239121][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 158.246287][ T8239] [ 158.248671][ T8239] Uninit was stored to memory at: [ 158.253451][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 158.259422][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 158.265479][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 158.270251][ T8239] __msan_memcpy+0x46/0x60 [ 158.275032][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 158.280995][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 158.286966][ T8239] linkmodes_prepare_data+0x244/0x650 [ 158.291754][ T8239] ethnl_default_notify+0x432/0x1030 [ 158.297761][ T8239] ethtool_notify+0x259/0x520 [ 158.302527][ T8239] dev_ethtool+0xe250/0xe7b0 [ 158.307308][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.310901][ T8239] sock_do_ioctl+0x477/0x700 [ 158.315671][ T8239] sock_ioctl+0x997/0xef0 [ 158.320454][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.325228][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.328809][ T8239] do_syscall_64+0x9f/0x140 [ 158.333607][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.339563][ T8239] [ 158.341943][ T8239] Uninit was stored to memory at: [ 158.346716][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 158.352680][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 158.359831][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 158.364615][ T8239] __msan_memcpy+0x46/0x60 [ 158.369384][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 158.374160][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 158.378947][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.383722][ T8239] sock_do_ioctl+0x477/0x700 [ 158.388491][ T8239] sock_ioctl+0x997/0xef0 [ 158.392055][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.396835][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.401620][ T8239] do_syscall_64+0x9f/0x140 [ 158.406412][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.412361][ T8239] [ 158.414796][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 158.421940][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.426730][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.431538][ T8239] ===================================================== [ 158.438921][ T8239] ===================================================== [ 158.445887][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x53e/0x5a0 [ 158.448814][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 158.448814][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 158.448814][ T8239] Call Trace: [ 158.448814][ T8239] dump_stack+0x24c/0x2e0 [ 158.448814][ T8239] kmsan_report+0xfb/0x1e0 [ 158.448814][ T8239] __msan_warning+0x5c/0xa0 [ 158.448814][ T8239] __ethtool_get_link_ksettings+0x53e/0x5a0 [ 158.448814][ T8239] linkmodes_prepare_data+0x244/0x650 [ 158.448814][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.448814][ T8239] ? ethnl_set_linkinfo+0xe80/0xe80 [ 158.448814][ T8239] ethnl_default_notify+0x432/0x1030 [ 158.517987][ T8239] ethtool_notify+0x259/0x520 [ 158.522778][ T8239] dev_ethtool+0xe250/0xe7b0 [ 158.526376][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.532352][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.537150][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 158.543149][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.547925][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.552696][ T8239] sock_do_ioctl+0x477/0x700 [ 158.557475][ T8239] sock_ioctl+0x997/0xef0 [ 158.561047][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.567220][ T8239] ? sock_poll+0x690/0x690 [ 158.570828][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.575643][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.580527][ T8239] do_syscall_64+0x9f/0x140 [ 158.585327][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.591318][ T8239] RIP: 0033:0x440b89 [ 158.594919][ T8239] 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 [ 158.613994][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 158.622373][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 158.630721][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 158.639119][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 158.646269][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 158.654621][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 158.663076][ T8239] [ 158.665465][ T8239] Uninit was stored to memory at: [ 158.670307][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 158.676287][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 158.682239][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 158.687124][ T8239] __msan_memcpy+0x46/0x60 [ 158.691944][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 158.696763][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0 [ 158.702734][ T8239] linkmodes_prepare_data+0x244/0x650 [ 158.707534][ T8239] ethnl_default_notify+0x432/0x1030 [ 158.713496][ T8239] ethtool_notify+0x259/0x520 [ 158.718287][ T8239] dev_ethtool+0xe250/0xe7b0 [ 158.723117][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.726779][ T8239] sock_do_ioctl+0x477/0x700 [ 158.731714][ T8239] sock_ioctl+0x997/0xef0 [ 158.735305][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.740107][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.744930][ T8239] do_syscall_64+0x9f/0x140 [ 158.749860][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.755845][ T8239] [ 158.758244][ T8239] Uninit was stored to memory at: [ 158.763091][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 158.769104][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 158.775089][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 158.779880][ T8239] __msan_memcpy+0x46/0x60 [ 158.784673][ T8239] tun_set_link_ksettings+0x7e/0xb0 [ 158.789452][ T8239] dev_ethtool+0xe1a2/0xe7b0 [ 158.794280][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.797877][ T8239] sock_do_ioctl+0x477/0x700 [ 158.802669][ T8239] sock_ioctl+0x997/0xef0 [ 158.807450][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.812212][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.816988][ T8239] do_syscall_64+0x9f/0x140 [ 158.820575][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 158.826636][ T8239] [ 158.829028][ T8239] Local variable ----link_ksettings.i893@dev_ethtool created at: [ 158.837384][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.840983][ T8239] dev_ethtool+0x3cdc/0xe7b0 [ 158.845748][ T8239] ===================================================== [ 158.853983][ T8239] ===================================================== [ 158.860929][ T8239] BUG: KMSAN: uninit-value in __ethtool_get_link_ksettings+0x56b/0x5a0 [ 158.863850][ T8239] CPU: 0 PID: 8239 Comm: syz-executor427 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 158.863850][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 158.863850][ T8239] Call Trace: [ 158.863850][ T8239] dump_stack+0x24c/0x2e0 [ 158.863850][ T8239] kmsan_report+0xfb/0x1e0 [ 158.863850][ T8239] __msan_warning+0x5c/0xa0 [ 158.863850][ T8239] __ethtool_get_link_ksettings+0x56b/0x5a0 [ 158.863850][ T8239] linkmodes_prepare_data+0x244/0x650 [ 158.863850][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.863850][ T8239] ? ethnl_set_linkinfo+0xe80/0xe80 [ 158.927823][ T8239] ethnl_default_notify+0x432/0x1030 [ 158.932728][ T8239] ethtool_notify+0x259/0x520 [ 158.937564][ T8239] dev_ethtool+0xe250/0xe7b0 [ 158.942372][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.947174][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.953150][ T8239] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 158.959130][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.963950][ T8239] dev_ioctl+0x5a3/0x1260 [ 158.967541][ T8239] sock_do_ioctl+0x477/0x700 [ 158.972317][ T8239] sock_ioctl+0x997/0xef0 [ 158.977107][ T8239] ? kmsan_get_metadata+0x116/0x180 [ 158.981919][ T8239] ? sock_poll+0x690/0x690 [ 158.986737][ T8239] __se_sys_ioctl+0x311/0x4d0 [ 158.991521][ T8239] __x64_sys_ioctl+0x4a/0x70 [ 158.996293][ T8239] do_syscall_64+0x9f/0x140 [ 159.001073][ T8239] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 159.007044][ T8239] RIP: 0033:0x440b89 [ 159.010641][ T8239] 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 [ 159.030105][ T8239] RSP: 002b:00007ffc407d46e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 159.038502][ T8239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440b89 [ 159.046888][ T8239] RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003 [ 159.055351][ T8239] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 159.062594][ T8239] R10: 0000000000f0b5ff R11: 0000000000000246 R12: 00000000000253d7 [ 159.071011][ T8239] R13: 00007ffc407d4710 R14: 00007ffc407d4700 R15: 00007ffc407d46f4 [ 159.079402][ T8239] [ 159.081819][ T8239] Uninit was stored to memory at: [ 159.086683][ T8239] kmsan_internal_chain_origin+0xad/0x130 [ 159.091477][ T8239] kmsan_memcpy_memmove_metadata+0x25e/0x2d0 [ 159.098637][ T8239] kmsan_memcpy_metadata+0xb/0x10 [ 159.103417][ T8239] __msan_memcpy+0x46/0x60 [ 159.107006][ T8239] tun_get_link_ksettings+0x7c/0xb0 [ 159.113070][ T8239] __ethtool_get_link_ksettings+0x204/0x5a0