Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] Fix KMSAN infoleak, initialize unused data in pskb_expand_head | 7 (7) | 2024/10/05 04:59 |
[syzbot] [net?] KMSAN: kernel-infoleak in move_addr_to_user (7) | 0 (2) | 2024/10/02 00:05 |
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Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH] Fix KMSAN infoleak, initialize unused data in pskb_expand_head | 7 (7) | 2024/10/05 04:59 |
[syzbot] [net?] KMSAN: kernel-infoleak in move_addr_to_user (7) | 0 (2) | 2024/10/02 00:05 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KMSAN: kernel-infoleak in move_addr_to_user (3) net | C | 79 | 1489d | 1524d | 15/28 | fixed on 2020/09/28 09:09 | ||
upstream | KMSAN: kernel-infoleak in move_addr_to_user (2) net | C | 8 | 2029d | 2044d | 11/28 | fixed on 2019/03/28 12:00 | ||
upstream | KMSAN: kernel-infoleak in move_addr_to_user (4) net | C | 59 | 1322d | 1374d | 19/28 | fixed on 2021/03/10 01:48 | ||
upstream | KMSAN: kernel-infoleak in move_addr_to_user (5) tipc | 3 | 1171d | 1312d | 20/28 | fixed on 2021/11/10 00:50 | |||
upstream | KMSAN: kernel-infoleak in move_addr_to_user net | 5 | 2057d | 2107d | 11/28 | fixed on 2019/03/06 07:43 | |||
upstream | KMSAN: kernel-infoleak in move_addr_to_user (6) tipc | C | 4 | 991d | 1029d | 20/28 | fixed on 2022/03/08 16:11 |
===================================================== BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in _inline_copy_to_user include/linux/uaccess.h:180 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x110 lib/usercopy.c:26 instrument_copy_to_user include/linux/instrumented.h:114 [inline] _inline_copy_to_user include/linux/uaccess.h:180 [inline] _copy_to_user+0xbc/0x110 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] move_addr_to_user+0x28b/0x400 net/socket.c:292 ____sys_recvmsg+0x232/0x620 net/socket.c:2829 ___sys_recvmsg+0x223/0x840 net/socket.c:2864 do_recvmmsg+0x4f6/0xfd0 net/socket.c:2958 __sys_recvmmsg net/socket.c:3037 [inline] __do_sys_recvmmsg net/socket.c:3060 [inline] __se_sys_recvmmsg net/socket.c:3053 [inline] __x64_sys_recvmmsg+0x397/0x490 net/socket.c:3053 x64_sys_call+0x2e5d/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:300 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 Uninit was stored to memory at: packet_recvmsg+0x176a/0x2500 net/packet/af_packet.c:3585 sock_recvmsg_nosec+0x22f/0x2b0 net/socket.c:1052 ____sys_recvmsg+0x541/0x620 net/socket.c:2820 ___sys_recvmsg+0x223/0x840 net/socket.c:2864 do_recvmmsg+0x4f6/0xfd0 net/socket.c:2958 __sys_recvmmsg net/socket.c:3037 [inline] __do_sys_recvmmsg net/socket.c:3060 [inline] __se_sys_recvmmsg net/socket.c:3053 [inline] __x64_sys_recvmmsg+0x397/0x490 net/socket.c:3053 x64_sys_call+0x2e5d/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:300 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 Uninit was stored to memory at: eth_header_parse+0xb8/0x110 net/ethernet/eth.c:204 dev_parse_header include/linux/netdevice.h:3158 [inline] packet_rcv+0xefc/0x2050 net/packet/af_packet.c:2253 dev_queue_xmit_nit+0x114b/0x12a0 net/core/dev.c:2347 xmit_one net/core/dev.c:3584 [inline] dev_hard_start_xmit+0x17d/0xa20 net/core/dev.c:3604 __dev_queue_xmit+0x3576/0x55e0 net/core/dev.c:4424 dev_queue_xmit include/linux/netdevice.h:3094 [inline] __bpf_tx_skb net/core/filter.c:2152 [inline] __bpf_redirect_common net/core/filter.c:2196 [inline] __bpf_redirect+0x148c/0x1610 net/core/filter.c:2203 ____bpf_clone_redirect net/core/filter.c:2475 [inline] bpf_clone_redirect+0x37e/0x500 net/core/filter.c:2447 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:2010 __bpf_prog_run512+0xc5/0xf0 kernel/bpf/core.c:2253 bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] bpf_test_run+0x546/0xd20 net/bpf/test_run.c:433 bpf_prog_test_run_skb+0x182f/0x24d0 net/bpf/test_run.c:1094 bpf_prog_test_run+0x6b1/0xac0 kernel/bpf/syscall.c:4320 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5735 __do_sys_bpf kernel/bpf/syscall.c:5824 [inline] __se_sys_bpf kernel/bpf/syscall.c:5822 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5822 x64_sys_call+0x2cce/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:322 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 Uninit was created at: slab_post_alloc_hook mm/slub.c:4092 [inline] slab_alloc_node mm/slub.c:4135 [inline] kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4187 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587 pskb_expand_head+0x226/0x1a60 net/core/skbuff.c:2275 skb_ensure_writable+0x496/0x520 net/core/skbuff.c:6214 __bpf_try_make_writable net/core/filter.c:1677 [inline] bpf_try_make_writable net/core/filter.c:1683 [inline] bpf_try_make_head_writable net/core/filter.c:1691 [inline] ____bpf_clone_redirect net/core/filter.c:2469 [inline] bpf_clone_redirect+0x1c5/0x500 net/core/filter.c:2447 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:2010 __bpf_prog_run512+0xc5/0xf0 kernel/bpf/core.c:2253 bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] bpf_test_run+0x546/0xd20 net/bpf/test_run.c:433 bpf_prog_test_run_skb+0x182f/0x24d0 net/bpf/test_run.c:1094 bpf_prog_test_run+0x6b1/0xac0 kernel/bpf/syscall.c:4320 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5735 __do_sys_bpf kernel/bpf/syscall.c:5824 [inline] __se_sys_bpf kernel/bpf/syscall.c:5822 [inline] __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5822 x64_sys_call+0x2cce/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:322 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 Bytes 12-17 of 20 are uninitialized Memory access of size 20 starts at ffff88812112fa48 Data copied to user address 0000000020000ac0 CPU: 0 UID: 0 PID: 5234 Comm: syz-executor312 Not tainted 6.11.0-syzkaller-08481-g88264981f208 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/22 17:20 | upstream | 88264981f208 | 6f888b75 | .config | strace log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-root | KMSAN: kernel-infoleak in move_addr_to_user | |
2024/09/22 12:36 | upstream | 88264981f208 | 6f888b75 | .config | strace log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-root | KMSAN: kernel-infoleak in move_addr_to_user | |
2024/09/21 21:47 | upstream | 1868f9d0260e | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-root | KMSAN: kernel-infoleak in move_addr_to_user |