cve-2024-56372
Vulnerability from cvelistv5
Published
2025-01-11 12:35
Modified
2025-01-20 06:22
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: tun: fix tun_napi_alloc_frags()
syzbot reported the following crash [1]
Issue came with the blamed commit. Instead of going through
all the iov components, we keep using the first one
and end up with a malformed skb.
[1]
kernel BUG at net/core/skbuff.c:2849 !
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 6230 Comm: syz-executor132 Not tainted 6.13.0-rc1-syzkaller-00407-g96b6fcc0ee41 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848
Code: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90004cbef30 EFLAGS: 00010293
RAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00
RDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000
RBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c
R10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50
R13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80
FS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0dca6ead58 CR3: 00000000119da000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284
tipc_aead_decrypt net/tipc/crypto.c:894 [inline]
tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844
tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109
tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668
__netif_receive_skb_list_ptype net/core/dev.c:5720 [inline]
__netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762
__netif_receive_skb_list net/core/dev.c:5814 [inline]
netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905
gro_normal_list include/net/gro.h:515 [inline]
napi_complete_done+0x2b5/0x870 net/core/dev.c:6256
napi_complete include/linux/netdevice.h:567 [inline]
tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982
tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057
do_iter_readv_writev+0x600/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_writev+0x1b6/0x360 fs/read_write.c:1096
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/tun.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "efe74dd58a72bd987b158142c904b7ef2ad132e2",
"status": "affected",
"version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea",
"versionType": "git"
},
{
"lessThan": "4f393ea1e2f9c3b646d00572dd92c48b1869c65f",
"status": "affected",
"version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea",
"versionType": "git"
},
{
"lessThan": "429fde2d81bcef0ebab002215358955704586457",
"status": "affected",
"version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/tun.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"lessThan": "6.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.68",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tun: fix tun_napi_alloc_frags()\n\nsyzbot reported the following crash [1]\n\nIssue came with the blamed commit. Instead of going through\nall the iov components, we keep using the first one\nand end up with a malformed skb.\n\n[1]\n\nkernel BUG at net/core/skbuff.c:2849 !\nOops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\nCPU: 0 UID: 0 PID: 6230 Comm: syz-executor132 Not tainted 6.13.0-rc1-syzkaller-00407-g96b6fcc0ee41 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024\n RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848\nCode: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 \u003c0f\u003e 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90\nRSP: 0018:ffffc90004cbef30 EFLAGS: 00010293\nRAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00\nRDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000\nRBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c\nR10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50\nR13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80\nFS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f0dca6ead58 CR3: 00000000119da000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284\n tipc_aead_decrypt net/tipc/crypto.c:894 [inline]\n tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844\n tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109\n tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668\n __netif_receive_skb_list_ptype net/core/dev.c:5720 [inline]\n __netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762\n __netif_receive_skb_list net/core/dev.c:5814 [inline]\n netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905\n gro_normal_list include/net/gro.h:515 [inline]\n napi_complete_done+0x2b5/0x870 net/core/dev.c:6256\n napi_complete include/linux/netdevice.h:567 [inline]\n tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982\n tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057\n do_iter_readv_writev+0x600/0x880\n vfs_writev+0x376/0xba0 fs/read_write.c:1050\n do_writev+0x1b6/0x360 fs/read_write.c:1096\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"
}
],
"providerMetadata": {
"dateUpdated": "2025-01-20T06:22:20.565Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/efe74dd58a72bd987b158142c904b7ef2ad132e2"
},
{
"url": "https://git.kernel.org/stable/c/4f393ea1e2f9c3b646d00572dd92c48b1869c65f"
},
{
"url": "https://git.kernel.org/stable/c/429fde2d81bcef0ebab002215358955704586457"
}
],
"title": "net: tun: fix tun_napi_alloc_frags()",
"x_generator": {
"engine": "bippy-5f407fcff5a0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-56372",
"datePublished": "2025-01-11T12:35:47.256Z",
"dateReserved": "2025-01-11T12:34:02.635Z",
"dateUpdated": "2025-01-20T06:22:20.565Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-56372\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-01-11T13:15:28.873\",\"lastModified\":\"2025-01-11T13:15:28.873\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: tun: fix tun_napi_alloc_frags()\\n\\nsyzbot reported the following crash [1]\\n\\nIssue came with the blamed commit. Instead of going through\\nall the iov components, we keep using the first one\\nand end up with a malformed skb.\\n\\n[1]\\n\\nkernel BUG at net/core/skbuff.c:2849 !\\nOops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\\nCPU: 0 UID: 0 PID: 6230 Comm: syz-executor132 Not tainted 6.13.0-rc1-syzkaller-00407-g96b6fcc0ee41 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024\\n RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848\\nCode: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 \u003c0f\u003e 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90\\nRSP: 0018:ffffc90004cbef30 EFLAGS: 00010293\\nRAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00\\nRDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000\\nRBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c\\nR10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50\\nR13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80\\nFS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007f0dca6ead58 CR3: 00000000119da000 CR4: 00000000003526f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n \u003cTASK\u003e\\n skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284\\n tipc_aead_decrypt net/tipc/crypto.c:894 [inline]\\n tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844\\n tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109\\n tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668\\n __netif_receive_skb_list_ptype net/core/dev.c:5720 [inline]\\n __netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762\\n __netif_receive_skb_list net/core/dev.c:5814 [inline]\\n netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905\\n gro_normal_list include/net/gro.h:515 [inline]\\n napi_complete_done+0x2b5/0x870 net/core/dev.c:6256\\n napi_complete include/linux/netdevice.h:567 [inline]\\n tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982\\n tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057\\n do_iter_readv_writev+0x600/0x880\\n vfs_writev+0x376/0xba0 fs/read_write.c:1050\\n do_writev+0x1b6/0x360 fs/read_write.c:1096\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/429fde2d81bcef0ebab002215358955704586457\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4f393ea1e2f9c3b646d00572dd92c48b1869c65f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/efe74dd58a72bd987b158142c904b7ef2ad132e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.