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BUG: KMSAN: kernel-infoleak-after-free in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak-after-free in copy_to_user_iter lib/iov_iter.c:24 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_ubuf include/linux/iov_iter.h:30 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
BUG: KMSAN: kernel-infoleak-after-free in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KMSAN: kernel-infoleak-after-free in _copy_to_iter+0xf0e/0x32f0 lib/iov_iter.c:185
 instrument_copy_to_user include/linux/instrumented.h:114 [inline]
 copy_to_user_iter lib/iov_iter.c:24 [inline]
 iterate_ubuf include/linux/iov_iter.h:30 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
 iterate_and_advance include/linux/iov_iter.h:328 [inline]
 _copy_to_iter+0xf0e/0x32f0 lib/iov_iter.c:185
 copy_page_to_iter+0x43c/0x8b0 lib/iov_iter.c:362
 copy_folio_to_iter include/linux/uio.h:198 [inline]
 filemap_read+0xced/0x2190 mm/filemap.c:2753
 blkdev_read_iter+0x89f/0xb00 block/fops.c:809
 new_sync_read fs/read_write.c:489 [inline]
 vfs_read+0x845/0xef0 fs/read_write.c:570
 ksys_read fs/read_write.c:713 [inline]
 __do_sys_read fs/read_write.c:722 [inline]
 __se_sys_read fs/read_write.c:720 [inline]
 __x64_sys_read+0x1fb/0x4d0 fs/read_write.c:720
 x64_sys_call+0x39db/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:1
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_free_hook mm/slub.c:2306 [inline]
 slab_free mm/slub.c:4642 [inline]
 kfree+0x236/0xea0 mm/slub.c:4841
 ieee80211_ibss_rx_queued_mgmt+0x2f83/0x3f60 net/mac80211/ibss.c:-1
 ieee80211_iface_process_skb net/mac80211/iface.c:1625 [inline]
 ieee80211_iface_work+0x1244/0x1b50 net/mac80211/iface.c:1679
 cfg80211_wiphy_work+0x357/0x820 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb97/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd59/0xf00 kernel/kthread.c:464
 ret_from_fork+0x6e/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Bytes 202-207 of 1024 are uninitialized
Memory access of size 1024 starts at ffff8880522b1000
Data copied to user address 00007fd2ddf91000

CPU: 1 UID: 0 PID: 5991 Comm: udevd Not tainted 6.15.0-rc6-syzkaller-00234-g83a896549f92 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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