Hi, > RIP: 0010:rfkill_alloc+0x2c0/0x380 net/rfkill/core.c:930 This seems pretty obvious - there's no name given. > wiphy_new_nm+0x159c/0x21d0 net/wireless/core.c:487 > ieee80211_alloc_hw_nm+0x4b4/0x2140 net/mac80211/main.c:531 which is strange, because we try to validate the name here. Can you help me read this? sendmsg$nl_generic(r1, &(0x7f0000b3e000-0x38)={&(0x7f0000d4a000- 0xc)={0x10, 0x0, 0x0, 0x0}, 0xc, &(0x7f0000007000)={&(0x7f00001ca000)={0x14, 0x1c, 0x109, 0xffffffffffffffff, 0xffffffffffffffff, {0x4, 0x0, 0x0}, []}, 0x14}, 0x1, 0x0, 0x0, 0x0}, 0x0) I've reformatted it as sendmsg$nl_generic( r1, &(0x7f0000b3e000-0x38)={ addr= &(0x7f0000d4a000-0xc)={ 0x10, 0x0, 0x0, 0x0 }, addrlen=0xc, vec= &(0x7f0000007000)={ ptr= &(0x7f00001ca000)={ 0x14, 0x1c, 0x109, 0xffffffffffffffff, 0xffffffffffffffff, {0x4, 0x0, 0x0}, [] }, len= 0x14 }, vlen= 0x1, ctrl= 0x0, ctrllen=0x0, f= 0x0 }, 0x0 ) but am still getting lost - what exactly is the *byte* sequence inside the (full) message (including headers)? Ah, then again, now I see the fault injection - I guess dev_set_name() just failed and we didn't check the return value, will fix that. johannes