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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH 5.10 000/663] 5.10.20-rc1 review | 673 (673) | 2021/03/05 18:03 |
| [PATCH 5.11 000/775] 5.11.3-rc1 review | 776 (776) | 2021/03/01 16:15 |
| [PATCH bpf] bpf: fix an unitialized value in bpf_iter | 2 (2) | 2021/02/12 21:38 |
| KMSAN: uninit-value in bpf_iter_prog_supported | 2 (3) | 2021/02/09 16:23 |
===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Not tainted 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sk_storage_map_iter_init+0x6a/0x85 net/core/bpf_sk_storage.c:942 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sockmap_iter_init+0x6a/0x85 net/core/sock_map.c:1601 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_prog_iter_init+0x6a/0x85 kernel/bpf/prog_iter.c:104 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 task_iter_init+0x141/0x1b7 kernel/bpf/task_iter.c:342 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 task_iter_init+0x6c/0x1b7 kernel/bpf/task_iter.c:336 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_map_iter_init+0xd4/0x11e kernel/bpf/map_iter.c:192 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9130 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 0000000000000000 R09: 00000000009b9130 R10: 00007fff2985e64c R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_map_iter_init+0x6f/0x11e kernel/bpf/map_iter.c:188 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9050 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 00007fff2985e64c R09: 00000000009b9050 R10: 0000000000050b00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sk_storage_map_iter_init+0x6a/0x85 net/core/bpf_sk_storage.c:942 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9050 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 00007fff2985e64c R09: 00000000009b9050 R10: 0000000000050b00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sockmap_iter_init+0x6a/0x85 net/core/sock_map.c:1601 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_prog_supported+0x3dd/0x6a0 kernel/bpf/bpf_iter.c:343 check_attach_btf_id kernel/bpf/verifier.c:11911 [inline] bpf_check+0x11650/0x1c220 kernel/bpf/verifier.c:12039 bpf_prog_load kernel/bpf/syscall.c:2204 [inline] __do_sys_bpf+0x16fc9/0x1a840 kernel/bpf/syscall.c:4382 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b9050 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985e440 RDI: 0000000000000005 RBP: 00007fff2985e500 R08: 00007fff2985e64c R09: 00000000009b9050 R10: 0000000000050b00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000ffffff R14: 00007fff2985e470 R15: 00007fff2985e440 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_prog_iter_init+0x6a/0x85 kernel/bpf/prog_iter.c:104 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009ba8c0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9110 R13: 0000000000000000 R14: 00000000009b9280 R15: 00000000009b9280 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sk_storage_map_iter_init+0x6a/0x85 net/core/bpf_sk_storage.c:942 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009ba8c0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9110 R13: 0000000000000000 R14: 00000000009b9280 R15: 00000000009b9280 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sockmap_iter_init+0x6a/0x85 net/core/sock_map.c:1601 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009ba8c0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9110 R13: 0000000000000000 R14: 00000000009b9280 R15: 00000000009b9280 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 task_iter_init+0x141/0x1b7 kernel/bpf/task_iter.c:342 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009ba8c0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9110 R13: 0000000000000000 R14: 00000000009b9280 R15: 00000000009b9280 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 task_iter_init+0x6c/0x1b7 kernel/bpf/task_iter.c:336 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 1 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009ba8c0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9110 R13: 0000000000000000 R14: 00000000009b9280 R15: 00000000009b9280 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_map_iter_init+0xd4/0x11e kernel/bpf/map_iter.c:192 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b90b0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9030 R13: 0000000000000001 R14: 00000000009b9358 R15: 00000000009b9358 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sk_storage_map_iter_init+0x6a/0x85 net/core/bpf_sk_storage.c:942 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ===================================================== ===================================================== BUG: KMSAN: uninit-value in bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 CPU: 0 PID: 10139 Comm: bpf_preload Tainted: G B 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 bpf_iter_link_attach+0x509/0xa30 kernel/bpf/bpf_iter.c:510 link_create kernel/bpf/syscall.c:4003 [inline] __do_sys_bpf+0x844c/0x1a840 kernel/bpf/syscall.c:4452 __se_sys_bpf+0x8e/0xa0 kernel/bpf/syscall.c:4340 __x64_sys_bpf+0x4a/0x70 kernel/bpf/syscall.c:4340 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8e51e3d469 Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 8b 0d ff 49 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff2985fcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000009b90b0 RCX: 00007f8e51e3d469 RDX: 0000000000000078 RSI: 00007fff2985fce0 RDI: 000000000000001c RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000007 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000009b9030 R13: 0000000000000001 R14: 00000000009b9358 R15: 00000000009b9358 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8d/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc_trace+0x8ca/0x1020 mm/slub.c:2933 kmalloc include/linux/slab.h:552 [inline] bpf_iter_reg_target+0x81/0x3f0 kernel/bpf/bpf_iter.c:290 bpf_sockmap_iter_init+0x6a/0x85 net/core/sock_map.c:1601 do_one_initcall+0x362/0x8d0 init/main.c:1226 do_initcall_level+0x1e7/0x35a init/main.c:1299 do_initcalls+0x127/0x1cb init/main.c:1315 do_basic_setup+0x33/0x36 init/main.c:1335 kernel_init_freeable+0x23d/0x390 init/main.c:1536 kernel_init+0x1f/0x840 init/main.c:1424 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 =====================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021/04/09 19:02 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 18:00 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 16:46 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 15:17 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 14:17 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 12:59 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 11:51 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 10:46 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 09:56 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 08:50 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 08:24 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 07:11 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 05:40 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 04:39 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 04:23 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 03:22 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 02:13 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 01:09 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/09 00:28 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 23:01 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 21:58 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 20:16 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 19:13 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 19:05 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 18:01 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 16:57 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 15:54 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 14:48 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 13:34 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 11:52 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 11:13 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 09:10 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 07:25 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 06:20 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 06:15 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 05:02 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 03:18 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 03:00 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 01:43 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/08 00:42 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 23:29 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 23:28 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 22:20 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 21:07 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 19:58 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 19:36 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/04/07 18:27 | https://github.com/google/kmsan.git master | 29ad81a1074a | 6a81331a | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/02/07 11:34 | https://github.com/google/kmsan.git master | 73d62e81b476 | 2ce644fc | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/02/03 11:14 | https://github.com/google/kmsan.git master | 73d62e81b476 | 624dad51 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported | |||
| 2021/02/02 23:05 | https://github.com/google/kmsan.git master | 73d62e81b476 | 624dad51 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in bpf_iter_prog_supported |