===================================================== BUG: KMSAN: uninit-value in __alloc_pages_slowpath+0xee8/0x16c0 mm/page_alloc.c:4416 __alloc_pages_slowpath+0xee8/0x16c0 mm/page_alloc.c:4416 __alloc_frozen_pages_noprof+0xa4c/0xe00 mm/page_alloc.c:4752 alloc_pages_mpol+0x4cd/0x890 mm/mempolicy.c:2270 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline] alloc_pages_noprof+0x1b5/0x250 mm/mempolicy.c:2361 vm_area_alloc_pages mm/vmalloc.c:3591 [inline] __vmalloc_area_node mm/vmalloc.c:3669 [inline] __vmalloc_node_range_noprof+0xf18/0x26b0 mm/vmalloc.c:3846 vmalloc_user_noprof+0x90/0xb0 mm/vmalloc.c:4000 kcov_ioctl+0x5a/0x660 kernel/kcov.c:716 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0x246/0x440 fs/ioctl.c:892 __x64_sys_ioctl+0x96/0xe0 fs/ioctl.c:892 x64_sys_call+0x19f0/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable compact_result created at: __alloc_pages_slowpath+0x66/0x16c0 mm/page_alloc.c:4218 __alloc_frozen_pages_noprof+0xa4c/0xe00 mm/page_alloc.c:4752 CPU: 1 UID: 0 PID: 16582 Comm: syz-executor Tainted: G W 6.14.0-rc5-syzkaller-00039-g848e07631744 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 =====================================================