mirror of
https://github.com/CVEProject/cvelist.git
synced 2025-07-29 05:56:59 +00:00
157 lines
12 KiB
JSON
157 lines
12 KiB
JSON
{
|
|
"data_version": "4.0",
|
|
"data_type": "CVE",
|
|
"data_format": "MITRE",
|
|
"CVE_data_meta": {
|
|
"ID": "CVE-2024-41041",
|
|
"ASSIGNER": "cve@kernel.org",
|
|
"STATE": "PUBLIC"
|
|
},
|
|
"description": {
|
|
"description_data": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().\n\nsyzkaller triggered the warning [0] in udp_v4_early_demux().\n\nIn udp_v[46]_early_demux() and sk_lookup(), we do not touch the refcount\nof the looked-up sk and use sock_pfree() as skb->destructor, so we check\nSOCK_RCU_FREE to ensure that the sk is safe to access during the RCU grace\nperiod.\n\nCurrently, SOCK_RCU_FREE is flagged for a bound socket after being put\ninto the hash table. Moreover, the SOCK_RCU_FREE check is done too early\nin udp_v[46]_early_demux() and sk_lookup(), so there could be a small race\nwindow:\n\n CPU1 CPU2\n ---- ----\n udp_v4_early_demux() udp_lib_get_port()\n | |- hlist_add_head_rcu()\n |- sk = __udp4_lib_demux_lookup() |\n |- DEBUG_NET_WARN_ON_ONCE(sk_is_refcounted(sk));\n `- sock_set_flag(sk, SOCK_RCU_FREE)\n\nWe had the same bug in TCP and fixed it in commit 871019b22d1b (\"net:\nset SOCK_RCU_FREE before inserting socket into hashtable\").\n\nLet's apply the same fix for UDP.\n\n[0]:\nWARNING: CPU: 0 PID: 11198 at net/ipv4/udp.c:2599 udp_v4_early_demux+0x481/0xb70 net/ipv4/udp.c:2599\nModules linked in:\nCPU: 0 PID: 11198 Comm: syz-executor.1 Not tainted 6.9.0-g93bda33046e7 #13\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nRIP: 0010:udp_v4_early_demux+0x481/0xb70 net/ipv4/udp.c:2599\nCode: c5 7a 15 fe bb 01 00 00 00 44 89 e9 31 ff d3 e3 81 e3 bf ef ff ff 89 de e8 2c 74 15 fe 85 db 0f 85 02 06 00 00 e8 9f 7a 15 fe <0f> 0b e8 98 7a 15 fe 49 8d 7e 60 e8 4f 39 2f fe 49 c7 46 60 20 52\nRSP: 0018:ffffc9000ce3fa58 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8318c92c\nRDX: ffff888036ccde00 RSI: ffffffff8318c2f1 RDI: 0000000000000001\nRBP: ffff88805a2dd6e0 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0001ffffffffffff R12: ffff88805a2dd680\nR13: 0000000000000007 R14: ffff88800923f900 R15: ffff88805456004e\nFS: 00007fc449127640(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fc449126e38 CR3: 000000003de4b002 CR4: 0000000000770ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600\nPKRU: 55555554\nCall Trace:\n <TASK>\n ip_rcv_finish_core.constprop.0+0xbdd/0xd20 net/ipv4/ip_input.c:349\n ip_rcv_finish+0xda/0x150 net/ipv4/ip_input.c:447\n NF_HOOK include/linux/netfilter.h:314 [inline]\n NF_HOOK include/linux/netfilter.h:308 [inline]\n ip_rcv+0x16c/0x180 net/ipv4/ip_input.c:569\n __netif_receive_skb_one_core+0xb3/0xe0 net/core/dev.c:5624\n __netif_receive_skb+0x21/0xd0 net/core/dev.c:5738\n netif_receive_skb_internal net/core/dev.c:5824 [inline]\n netif_receive_skb+0x271/0x300 net/core/dev.c:5884\n tun_rx_batched drivers/net/tun.c:1549 [inline]\n tun_get_user+0x24db/0x2c50 drivers/net/tun.c:2002\n tun_chr_write_iter+0x107/0x1a0 drivers/net/tun.c:2048\n new_sync_write fs/read_write.c:497 [inline]\n vfs_write+0x76f/0x8d0 fs/read_write.c:590\n ksys_write+0xbf/0x190 fs/read_write.c:643\n __do_sys_write fs/read_write.c:655 [inline]\n __se_sys_write fs/read_write.c:652 [inline]\n __x64_sys_write+0x41/0x50 fs/read_write.c:652\n x64_sys_call+0xe66/0x1990 arch/x86/include/generated/asm/syscalls_64.h:2\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x4b/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\nRIP: 0033:0x7fc44a68bc1f\nCode: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 e9 cf f5 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 3c d0 f5 ff 48\nRSP: 002b:00007fc449126c90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00000000004bc050 RCX: 00007fc44a68bc1f\nR\n---truncated---"
|
|
}
|
|
]
|
|
},
|
|
"problemtype": {
|
|
"problemtype_data": [
|
|
{
|
|
"description": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "n/a"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"affects": {
|
|
"vendor": {
|
|
"vendor_data": [
|
|
{
|
|
"vendor_name": "Linux",
|
|
"product": {
|
|
"product_data": [
|
|
{
|
|
"product_name": "Linux",
|
|
"version": {
|
|
"version_data": [
|
|
{
|
|
"version_affected": "<",
|
|
"version_name": "6acc9b432e67",
|
|
"version_value": "7a67c4e47626"
|
|
},
|
|
{
|
|
"version_value": "not down converted",
|
|
"x_cve_json_5_version_data": {
|
|
"versions": [
|
|
{
|
|
"version": "4.20",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "4.20",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "5.4.280",
|
|
"lessThanOrEqual": "5.4.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "5.10.222",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "5.15.163",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.1.100",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.6.41",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.9.10",
|
|
"lessThanOrEqual": "6.9.*",
|
|
"status": "unaffected",
|
|
"versionType": "custom"
|
|
},
|
|
{
|
|
"version": "6.10",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
],
|
|
"defaultStatus": "affected"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
},
|
|
"references": {
|
|
"reference_data": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7a67c4e47626e6daccda62888f8b096abb5d3940",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/7a67c4e47626e6daccda62888f8b096abb5d3940"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/9f965684c57c3117cfd2f754dd3270383c529fba",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/9f965684c57c3117cfd2f754dd3270383c529fba"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ddf516e50bf8a7bc9b3bd8a9831f9c7a8131a32a",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/ddf516e50bf8a7bc9b3bd8a9831f9c7a8131a32a"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/a6db0d3ea6536e7120871e5448b3032570152ec6",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/a6db0d3ea6536e7120871e5448b3032570152ec6"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c5fd77ca13d657c6e99bf04f0917445e6a80231e",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/c5fd77ca13d657c6e99bf04f0917445e6a80231e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/20ceae10623c3b29fdf7609690849475bcdebdb0",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/20ceae10623c3b29fdf7609690849475bcdebdb0"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5c0b485a8c6116516f33925b9ce5b6104a6eadfd",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/5c0b485a8c6116516f33925b9ce5b6104a6eadfd"
|
|
}
|
|
]
|
|
},
|
|
"generator": {
|
|
"engine": "bippy-c9c4e1df01b2"
|
|
}
|
|
} |