| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Clang warns:
net/netfilter/ipset/ip_set_hash_ipportnet.c:249:29: warning: variable
'port_to' is uninitialized when used here [-Wuninitialized]
if (((u64)ip_to - ip + 1)*(port_to - port + 1) > IPSET_MAX_RANGE)
^~~~~~~
net/netfilter/ipset/ip_set_hash_ipportnet.c:167:45: note: initialize the
variable 'port_to' to silence this warning
u32 ip = 0, ip_to = 0, p = 0, port, port_to;
^
= 0
net/netfilter/ipset/ip_set_hash_ipportnet.c:249:39: warning: variable
'port' is uninitialized when used here [-Wuninitialized]
if (((u64)ip_to - ip + 1)*(port_to - port + 1) > IPSET_MAX_RANGE)
^~~~
net/netfilter/ipset/ip_set_hash_ipportnet.c:167:36: note: initialize the
variable 'port' to silence this warning
u32 ip = 0, ip_to = 0, p = 0, port, port_to;
^
= 0
2 warnings generated.
The range check was added before port and port_to are initialized.
Shuffle the check after the initialization so that the check works
properly.
Fixes: 7fb6c63025ff ("netfilter: ipset: Limit the maximal range of consecutive elements to
add/delete")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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The number of hosts in a netblock must be a power of two,
so use shift instead of division.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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A new function was not added to libipset.map at the previous release,
fix it. Reported by Jan Engelhardt.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Actually, this is the part of it which allows specifying protocols
by number :-)
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Avoid possible number overflows when calculating the number of
consecutive elements. Also, compute properly the consecutive
elements in the case of hash:net* types.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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This allows us to optimise and reduce restore time by specifying
protocol numbers, especially for large ipsets.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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The range size of consecutive elements were not limited. Thus one
could define a huge range which may result soft lockup errors due
to the long execution time. Now the range size is limited to 2^20
entries. Reported by Brad Spengler.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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This test checks that the translation from ipset to nftables is correct.
term$ cd tests/xlate
term$ ./runtest.sh
in case that the translation is not correct, it shows the diff with expected
translation output.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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This patch provides the ipset-translate utility which allows you to
translate your existing ipset file to nftables.
The ipset-translate utility is actually a symlink to ipset, which checks
for 'argv[0] == ipset-translate' to exercise the translation path.
You can translate your ipset file through:
ipset-translate restore < sets.ipt
This patch reuses the existing parser and API to represent the sets and
the elements.
There is a new ipset_xlate_set dummy object that allows to store a
created set to fetch the type without interactions with the kernel.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Do not call restore() from ipset_parser(). Instead, ipset_parser()
returns the IPSET_CMD_RESTORE command and the caller invokes restore().
This patch comes in preparation for the ipset to nftables translation
infrastructure.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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ipset_parse_argv() parses, builds and send the netlink messages to the
kernel. This patch extracts the parser and wrap it around the new
ipset_parser() function.
This patch comes is preparation for the ipset to nftables translation
infrastructure.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Backport patch "netfilter: use nfnetlink_unicast()" from
Pablo Neira Ayuso <pablo@netfilter.org>.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Backport patch "netfilter: nfnetlink: consolidate callback type"
from Pablo Neira Ayuso <pablo@netfilter.org>.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Backport patch "netfilter: nfnetlink: add struct nfnl_info and pass it
to callbacks" from Pablo Neira Ayuso <pablo@netfilter.org>.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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use it"
Backport patch "netfilter: add helper function to set up the nfnetlink
header and use it" from Pablo Neira Ayuso <pablo@netfilter.org>.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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The patch broke parsing service names: number parsing failures
are hard errors which erase data, thus making impossible to
parse input as a string. Fix it by enabling soft (warning)
failures in the case of port number parsing.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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This improves performance for loading IP sets using port numbers,
especially large ones.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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When ipset is compiled in non-debug mode, in some environments warnings
treated as errors emitted:
session.c: In function 'build_msg':
session.c:1985:28: warning: variable 'type' set but not used
[-Wunused-but-set-variable]
const struct ipset_type *type;
^
session.c:2030:28: warning: variable 'type' set but not used
[-Wunused-but-set-variable]
const struct ipset_type *type;
^
Fix it by hiding the unused variable definitions/settings in non-debug mode.
Reported by Serhey Popovych.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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* Use PRIx64 for portablility over various architectures.
* The format string for the 64bit number printing is incorrect,
the `%` sign is missing.
* The force types casting over the uint32_t and uint64_t are unnecessary
which warned by the compiler on different architecture.
Signed-off-by: Neutron Soutmun <neo.neutron@gmail.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Argument length checking was simply missing. Fixes netfilter
bugzilla #1492, reported by Marshall Whittaker.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Return code of strscpy() was not handled properly.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Calls to nla_strlcpy are now replaced by calls to nla_strscpy which is the new
name of this function.
Signed-off-by: Francis Laniel <laniel_francis@privacyrequired.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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htable_bits() can call jhash_size(32) and trigger shift-out-of-bounds
UBSAN: shift-out-of-bounds in net/netfilter/ipset/ip_set_hash_gen.h:151:6
shift exponent 32 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 8498 Comm: syz-executor519
Not tainted 5.10.0-rc7-next-20201208-syzkaller #0
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x107/0x163 lib/dump_stack.c:120
ubsan_epilogue+0xb/0x5a lib/ubsan.c:148
__ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395
htable_bits net/netfilter/ipset/ip_set_hash_gen.h:151 [inline]
hash_mac_create.cold+0x58/0x9b net/netfilter/ipset/ip_set_hash_gen.h:1524
ip_set_create+0x610/0x1380 net/netfilter/ipset/ip_set_core.c:1115
nfnetlink_rcv_msg+0xecc/0x1180 net/netfilter/nfnetlink.c:252
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:600
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x907/0xe40 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6e8/0x810 net/socket.c:2345
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2432
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
This patch replaces htable_bits() by simple fls(hashsize - 1) call:
it alone returns valid nbits both for round and non-round hashsizes.
It is normal to set any nbits here because it is validated inside
following htable_size() call which returns 0 for nbits>31.
Fixes: 1feab10d7e6d("netfilter: ipset: Unified hash type generation")
Reported-by: syzbot+d66bfadebca46cf61a2b@syzkaller.appspotmail.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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currently mtype_resize() can cause oops
t = ip_set_alloc(htable_size(htable_bits));
if (!t) {
ret = -ENOMEM;
goto out;
}
t->hregion = ip_set_alloc(ahash_sizeof_regions(htable_bits));
Increased htable_bits can force htable_size() to return 0.
In own turn ip_set_alloc(0) returns not 0 but ZERO_SIZE_PTR,
so follwoing access to t->hregion should trigger an OOPS.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Kernel compatibility support was broken in 7.9, reported by Ed W.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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An unnecessary condition prevented to compile pfxlen.c with the patch
202cfef66b3a1e0988d applied, it's fixed.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Currently netadmin inside non-trusted container can quickly allocate
whole node's memory via request of huge ipset hashtable.
Other ipset-related memory allocations should be restricted too.
v2: fixed typo ALLOC -> ACCOUNT
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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syzbot found that we are not validating user input properly
before copying 16 bytes [1].
Using NLA_BINARY in ipaddr_policy[] for IPv6 address is not correct,
since it ensures at most 16 bytes were provided.
We should instead make sure user provided exactly 16 bytes.
In old kernels (before v4.20), fix would be to remove the NLA_BINARY,
since NLA_POLICY_EXACT_LEN() was not yet available.
[1]
BUG: KMSAN: uninit-value in hash_ip6_add+0x1cba/0x3a50
net/netfilter/ipset/ip_set_hash_gen.h:892
CPU: 1 PID: 11611 Comm: syz-executor.0 Not tainted 5.10.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x21c/0x280 lib/dump_stack.c:118
kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118
__msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197
hash_ip6_add+0x1cba/0x3a50 net/netfilter/ipset/ip_set_hash_gen.h:892
hash_ip6_uadt+0x976/0xbd0 net/netfilter/ipset/ip_set_hash_ip.c:267
call_ad+0x329/0xd00 net/netfilter/ipset/ip_set_core.c:1720
ip_set_ad+0x111f/0x1440 net/netfilter/ipset/ip_set_core.c:1808
ip_set_uadd+0xf6/0x110 net/netfilter/ipset/ip_set_core.c:1833
nfnetlink_rcv_msg+0xc7d/0xdf0 net/netfilter/nfnetlink.c:252
netlink_rcv_skb+0x70a/0x820 net/netlink/af_netlink.c:2494
nfnetlink_rcv+0x4f0/0x4380 net/netfilter/nfnetlink.c:600
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x11da/0x14b0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x173c/0x1840 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg net/socket.c:671 [inline]
____sys_sendmsg+0xc7a/0x1240 net/socket.c:2353
___sys_sendmsg net/socket.c:2407 [inline]
__sys_sendmsg+0x6d5/0x830 net/socket.c:2440
__do_sys_sendmsg net/socket.c:2449 [inline]
__se_sys_sendmsg+0x97/0xb0 net/socket.c:2447
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2447
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3
fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe2e503fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000029ec0 RCX: 000000000045deb9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 000000000169fb7f R14: 00007fe2e50409c0 R15: 000000000118bf2c
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
__msan_chain_origin+0x57/0xa0 mm/kmsan/kmsan_instr.c:147
ip6_netmask include/linux/netfilter/ipset/pfxlen.h:49 [inline]
hash_ip6_netmask net/netfilter/ipset/ip_set_hash_ip.c:185 [inline]
hash_ip6_uadt+0xb1c/0xbd0 net/netfilter/ipset/ip_set_hash_ip.c:263
call_ad+0x329/0xd00 net/netfilter/ipset/ip_set_core.c:1720
ip_set_ad+0x111f/0x1440 net/netfilter/ipset/ip_set_core.c:1808
ip_set_uadd+0xf6/0x110 net/netfilter/ipset/ip_set_core.c:1833
nfnetlink_rcv_msg+0xc7d/0xdf0 net/netfilter/nfnetlink.c:252
netlink_rcv_skb+0x70a/0x820 net/netlink/af_netlink.c:2494
nfnetlink_rcv+0x4f0/0x4380 net/netfilter/nfnetlink.c:600
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x11da/0x14b0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x173c/0x1840 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg net/socket.c:671 [inline]
____sys_sendmsg+0xc7a/0x1240 net/socket.c:2353
___sys_sendmsg net/socket.c:2407 [inline]
__sys_sendmsg+0x6d5/0x830 net/socket.c:2440
__do_sys_sendmsg net/socket.c:2449 [inline]
__se_sys_sendmsg+0x97/0xb0 net/socket.c:2447
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2447
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline]
kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289
kmsan_memcpy_memmove_metadata+0x25e/0x2d0 mm/kmsan/kmsan.c:226
kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:246
__msan_memcpy+0x46/0x60 mm/kmsan/kmsan_instr.c:110
ip_set_get_ipaddr6+0x2cb/0x370 net/netfilter/ipset/ip_set_core.c:310
hash_ip6_uadt+0x439/0xbd0 net/netfilter/ipset/ip_set_hash_ip.c:255
call_ad+0x329/0xd00 net/netfilter/ipset/ip_set_core.c:1720
ip_set_ad+0x111f/0x1440 net/netfilter/ipset/ip_set_core.c:1808
ip_set_uadd+0xf6/0x110 net/netfilter/ipset/ip_set_core.c:1833
nfnetlink_rcv_msg+0xc7d/0xdf0 net/netfilter/nfnetlink.c:252
netlink_rcv_skb+0x70a/0x820 net/netlink/af_netlink.c:2494
nfnetlink_rcv+0x4f0/0x4380 net/netfilter/nfnetlink.c:600
netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
netlink_unicast+0x11da/0x14b0 net/netlink/af_netlink.c:1330
netlink_sendmsg+0x173c/0x1840 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg net/socket.c:671 [inline]
____sys_sendmsg+0xc7a/0x1240 net/socket.c:2353
___sys_sendmsg net/socket.c:2407 [inline]
__sys_sendmsg+0x6d5/0x830 net/socket.c:2440
__do_sys_sendmsg net/socket.c:2449 [inline]
__se_sys_sendmsg+0x97/0xb0 net/socket.c:2447
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2447
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
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:2906 [inline]
__kmalloc_node_track_caller+0xc61/0x15f0 mm/slub.c:4512
__kmalloc_reserve net/core/skbuff.c:142 [inline]
__alloc_skb+0x309/0xae0 net/core/skbuff.c:210
alloc_skb include/linux/skbuff.h:1094 [inline]
netlink_alloc_large_skb net/netlink/af_netlink.c:1176 [inline]
netlink_sendmsg+0xdb8/0x1840 net/netlink/af_netlink.c:1894
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg net/socket.c:671 [inline]
____sys_sendmsg+0xc7a/0x1240 net/socket.c:2353
___sys_sendmsg net/socket.c:2407 [inline]
__sys_sendmsg+0x6d5/0x830 net/socket.c:2440
__do_sys_sendmsg net/socket.c:2449 [inline]
__se_sys_sendmsg+0x97/0xb0 net/socket.c:2447
__x64_sys_sendmsg+0x4a/0x70 net/socket.c:2447
do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: a7b4f989a629 ("netfilter: ipset: IP set core support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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A forth argument of list_for_each_entry_rcu() was introduced, handle the
compatibility issue.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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The patch "Use fallthrough pseudo-keyword in the package copy of
<linux/jhash.h> too" missed to include the compatibility header file.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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It makes possible to reproduce exactly the same set after a save/restore.
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
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