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Subjectmemory leak in do_seccomp (2)
From
Hello,

syzbot found the following issue on:

HEAD commit: f40ddce8 Linux 5.11
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13aa6d22d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=5528e8db7fc481ae
dashboard link: https://syzkaller.appspot.com/bug?extid=ab17848fe269b573eb71
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1255579cd00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=121a374ad00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ab17848fe269b573eb71@syzkaller.appspotmail.com

BUG: memory leak
unreferenced object 0xffff888118765f00 (size 256):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000021396b5e>] kmalloc include/linux/slab.h:552 [inline]
[<0000000021396b5e>] kzalloc include/linux/slab.h:682 [inline]
[<0000000021396b5e>] seccomp_prepare_filter kernel/seccomp.c:656 [inline]
[<0000000021396b5e>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<0000000021396b5e>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<0000000021396b5e>] do_seccomp+0x3d2/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffc90000ebf000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
01 00 03 00 00 00 00 00 00 00 00 00 05 00 00 00 ................
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<000000003278951f>] __vmalloc_node mm/vmalloc.c:2619 [inline]
[<000000003278951f>] __vmalloc+0x49/0x50 mm/vmalloc.c:2633
[<00000000cc2e0bf4>] bpf_prog_alloc_no_stats+0x32/0x160 kernel/bpf/core.c:85
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888117212800 (size 1024):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000003fd1055c>] kmalloc include/linux/slab.h:552 [inline]
[<000000003fd1055c>] kzalloc include/linux/slab.h:682 [inline]
[<000000003fd1055c>] bpf_prog_alloc_no_stats+0x7d/0x160 kernel/bpf/core.c:89
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881186046e0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 a0 55 77 18 81 88 ff ff .........Uw.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002f7bb5fc>] kmalloc include/linux/slab.h:552 [inline]
[<000000002f7bb5fc>] bpf_prog_store_orig_filter+0x33/0xa0 net/core/filter.c:1135
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881187755a0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
06 00 00 00 ff ff ff 7f 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002ba3f45d>] kmemdup+0x23/0x50 mm/util.c:128
[<000000001aee1a49>] kmemdup include/linux/string.h:520 [inline]
[<000000001aee1a49>] bpf_prog_store_orig_filter+0x5e/0xa0 net/core/filter.c:1142
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffffffa0050000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 25.900s)
hex dump (first 32 bytes):
01 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc ................
cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<00000000c67b690b>] module_alloc+0x4f/0x60 arch/x86/kernel/module.c:75
[<00000000ee2a4550>] bpf_jit_binary_alloc+0xb9/0x180 kernel/bpf/core.c:868
[<00000000c863a6a8>] bpf_int_jit_compile+0x1bb/0x6c0 arch/x86/net/bpf_jit_comp.c:2075
[<00000000b342f60a>] bpf_prog_select_runtime+0x244/0x390 kernel/bpf/core.c:1809
[<000000005f5008b0>] bpf_migrate_filter+0x188/0x1f0 net/core/filter.c:1294
[<00000000fea53340>] bpf_prepare_filter net/core/filter.c:1342 [inline]
[<00000000fea53340>] bpf_prog_create_from_user+0x24d/0x2b0 net/core/filter.c:1436
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118765f00 (size 256):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000021396b5e>] kmalloc include/linux/slab.h:552 [inline]
[<0000000021396b5e>] kzalloc include/linux/slab.h:682 [inline]
[<0000000021396b5e>] seccomp_prepare_filter kernel/seccomp.c:656 [inline]
[<0000000021396b5e>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<0000000021396b5e>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<0000000021396b5e>] do_seccomp+0x3d2/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffc90000ebf000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
01 00 03 00 00 00 00 00 00 00 00 00 05 00 00 00 ................
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<000000003278951f>] __vmalloc_node mm/vmalloc.c:2619 [inline]
[<000000003278951f>] __vmalloc+0x49/0x50 mm/vmalloc.c:2633
[<00000000cc2e0bf4>] bpf_prog_alloc_no_stats+0x32/0x160 kernel/bpf/core.c:85
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888117212800 (size 1024):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000003fd1055c>] kmalloc include/linux/slab.h:552 [inline]
[<000000003fd1055c>] kzalloc include/linux/slab.h:682 [inline]
[<000000003fd1055c>] bpf_prog_alloc_no_stats+0x7d/0x160 kernel/bpf/core.c:89
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881186046e0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 a0 55 77 18 81 88 ff ff .........Uw.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002f7bb5fc>] kmalloc include/linux/slab.h:552 [inline]
[<000000002f7bb5fc>] bpf_prog_store_orig_filter+0x33/0xa0 net/core/filter.c:1135
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881187755a0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
06 00 00 00 ff ff ff 7f 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002ba3f45d>] kmemdup+0x23/0x50 mm/util.c:128
[<000000001aee1a49>] kmemdup include/linux/string.h:520 [inline]
[<000000001aee1a49>] bpf_prog_store_orig_filter+0x5e/0xa0 net/core/filter.c:1142
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffffffa0050000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 28.740s)
hex dump (first 32 bytes):
01 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc ................
cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<00000000c67b690b>] module_alloc+0x4f/0x60 arch/x86/kernel/module.c:75
[<00000000ee2a4550>] bpf_jit_binary_alloc+0xb9/0x180 kernel/bpf/core.c:868
[<00000000c863a6a8>] bpf_int_jit_compile+0x1bb/0x6c0 arch/x86/net/bpf_jit_comp.c:2075
[<00000000b342f60a>] bpf_prog_select_runtime+0x244/0x390 kernel/bpf/core.c:1809
[<000000005f5008b0>] bpf_migrate_filter+0x188/0x1f0 net/core/filter.c:1294
[<00000000fea53340>] bpf_prepare_filter net/core/filter.c:1342 [inline]
[<00000000fea53340>] bpf_prog_create_from_user+0x24d/0x2b0 net/core/filter.c:1436
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118765f00 (size 256):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000021396b5e>] kmalloc include/linux/slab.h:552 [inline]
[<0000000021396b5e>] kzalloc include/linux/slab.h:682 [inline]
[<0000000021396b5e>] seccomp_prepare_filter kernel/seccomp.c:656 [inline]
[<0000000021396b5e>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<0000000021396b5e>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<0000000021396b5e>] do_seccomp+0x3d2/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffc90000ebf000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
01 00 03 00 00 00 00 00 00 00 00 00 05 00 00 00 ................
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<000000003278951f>] __vmalloc_node mm/vmalloc.c:2619 [inline]
[<000000003278951f>] __vmalloc+0x49/0x50 mm/vmalloc.c:2633
[<00000000cc2e0bf4>] bpf_prog_alloc_no_stats+0x32/0x160 kernel/bpf/core.c:85
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888117212800 (size 1024):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000003fd1055c>] kmalloc include/linux/slab.h:552 [inline]
[<000000003fd1055c>] kzalloc include/linux/slab.h:682 [inline]
[<000000003fd1055c>] bpf_prog_alloc_no_stats+0x7d/0x160 kernel/bpf/core.c:89
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881186046e0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 a0 55 77 18 81 88 ff ff .........Uw.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002f7bb5fc>] kmalloc include/linux/slab.h:552 [inline]
[<000000002f7bb5fc>] bpf_prog_store_orig_filter+0x33/0xa0 net/core/filter.c:1135
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881187755a0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
06 00 00 00 ff ff ff 7f 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002ba3f45d>] kmemdup+0x23/0x50 mm/util.c:128
[<000000001aee1a49>] kmemdup include/linux/string.h:520 [inline]
[<000000001aee1a49>] bpf_prog_store_orig_filter+0x5e/0xa0 net/core/filter.c:1142
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffffffa0050000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 30.180s)
hex dump (first 32 bytes):
01 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc ................
cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<00000000c67b690b>] module_alloc+0x4f/0x60 arch/x86/kernel/module.c:75
[<00000000ee2a4550>] bpf_jit_binary_alloc+0xb9/0x180 kernel/bpf/core.c:868
[<00000000c863a6a8>] bpf_int_jit_compile+0x1bb/0x6c0 arch/x86/net/bpf_jit_comp.c:2075
[<00000000b342f60a>] bpf_prog_select_runtime+0x244/0x390 kernel/bpf/core.c:1809
[<000000005f5008b0>] bpf_migrate_filter+0x188/0x1f0 net/core/filter.c:1294
[<00000000fea53340>] bpf_prepare_filter net/core/filter.c:1342 [inline]
[<00000000fea53340>] bpf_prog_create_from_user+0x24d/0x2b0 net/core/filter.c:1436
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888118765f00 (size 256):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<0000000021396b5e>] kmalloc include/linux/slab.h:552 [inline]
[<0000000021396b5e>] kzalloc include/linux/slab.h:682 [inline]
[<0000000021396b5e>] seccomp_prepare_filter kernel/seccomp.c:656 [inline]
[<0000000021396b5e>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<0000000021396b5e>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<0000000021396b5e>] do_seccomp+0x3d2/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffc90000ebf000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
01 00 03 00 00 00 00 00 00 00 00 00 05 00 00 00 ................
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<000000003278951f>] __vmalloc_node mm/vmalloc.c:2619 [inline]
[<000000003278951f>] __vmalloc+0x49/0x50 mm/vmalloc.c:2633
[<00000000cc2e0bf4>] bpf_prog_alloc_no_stats+0x32/0x160 kernel/bpf/core.c:85
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888117212800 (size 1024):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000003fd1055c>] kmalloc include/linux/slab.h:552 [inline]
[<000000003fd1055c>] kzalloc include/linux/slab.h:682 [inline]
[<000000003fd1055c>] bpf_prog_alloc_no_stats+0x7d/0x160 kernel/bpf/core.c:89
[<00000000b872251d>] bpf_prog_alloc+0x24/0xc0 kernel/bpf/core.c:113
[<00000000bf2ace46>] bpf_prog_create_from_user+0x6e/0x2b0 net/core/filter.c:1413
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881186046e0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 a0 55 77 18 81 88 ff ff .........Uw.....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002f7bb5fc>] kmalloc include/linux/slab.h:552 [inline]
[<000000002f7bb5fc>] bpf_prog_store_orig_filter+0x33/0xa0 net/core/filter.c:1135
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881187755a0 (size 32):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
06 00 00 00 ff ff ff 7f 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002ba3f45d>] kmemdup+0x23/0x50 mm/util.c:128
[<000000001aee1a49>] kmemdup include/linux/string.h:520 [inline]
[<000000001aee1a49>] bpf_prog_store_orig_filter+0x5e/0xa0 net/core/filter.c:1142
[<00000000b2023fc7>] bpf_prog_create_from_user+0xfe/0x2b0 net/core/filter.c:1426
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffffffffa0050000 (size 4096):
comm "syz-executor670", pid 10148, jiffies 4294952981 (age 31.620s)
hex dump (first 32 bytes):
01 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc ................
cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................
backtrace:
[<00000000cbd981b5>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
[<00000000c67b690b>] module_alloc+0x4f/0x60 arch/x86/kernel/module.c:75
[<00000000ee2a4550>] bpf_jit_binary_alloc+0xb9/0x180 kernel/bpf/core.c:868
[<00000000c863a6a8>] bpf_int_jit_compile+0x1bb/0x6c0 arch/x86/net/bpf_jit_comp.c:2075
[<00000000b342f60a>] bpf_prog_select_runtime+0x244/0x390 kernel/bpf/core.c:1809
[<000000005f5008b0>] bpf_migrate_filter+0x188/0x1f0 net/core/filter.c:1294
[<00000000fea53340>] bpf_prepare_filter net/core/filter.c:1342 [inline]
[<00000000fea53340>] bpf_prog_create_from_user+0x24d/0x2b0 net/core/filter.c:1436
[<00000000e9cc9030>] seccomp_prepare_filter kernel/seccomp.c:661 [inline]
[<00000000e9cc9030>] seccomp_prepare_user_filter kernel/seccomp.c:698 [inline]
[<00000000e9cc9030>] seccomp_set_mode_filter kernel/seccomp.c:1802 [inline]
[<00000000e9cc9030>] do_seccomp+0x41c/0x11c0 kernel/seccomp.c:1922
[<000000004b7de4b6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<000000003adb0cc6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9



---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

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