===================================================== BUG: KMSAN: uninit-value in trie_delete_elem+0xc0/0xbe0 kernel/bpf/lpm_trie.c:448 trie_delete_elem+0xc0/0xbe0 kernel/bpf/lpm_trie.c:448 ____bpf_map_delete_elem kernel/bpf/helpers.c:77 [inline] bpf_map_delete_elem+0x5c/0x80 kernel/bpf/helpers.c:73 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997 __bpf_prog_run32+0xb2/0xe0 kernel/bpf/core.c:2236 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run2+0x116/0x300 kernel/trace/bpf_trace.c:2420 __bpf_trace_kfree+0x29/0x40 include/trace/events/kmem.h:94 trace_kfree include/trace/events/kmem.h:94 [inline] kfree+0x6a5/0xa30 mm/slub.c:4377 security_inode_init_security+0x51f/0x600 security/security.c:1748 ext4_init_security+0x4c/0x60 fs/ext4/xattr_security.c:58 __ext4_new_inode+0x75f1/0x79b0 fs/ext4/ialloc.c:1326 ext4_symlink+0x57e/0x1450 fs/ext4/namei.c:3395 vfs_symlink+0x1ed/0x3e0 fs/namei.c:4484 do_symlinkat+0x257/0x8a0 fs/namei.c:4510 __do_sys_symlinkat fs/namei.c:4526 [inline] __se_sys_symlinkat fs/namei.c:4523 [inline] __ia32_sys_symlinkat+0xf3/0x160 fs/namei.c:4523 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xba/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x7a/0x84 Local variable stack created at: __bpf_prog_run32+0x43/0xe0 kernel/bpf/core.c:2236 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run2+0x116/0x300 kernel/trace/bpf_trace.c:2420 CPU: 1 PID: 5333 Comm: syz-executor.3 Not tainted 6.9.0-rc1-syzkaller-00009-g7033999ecd7b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 =====================================================