gsd-2023-52610
Vulnerability from gsd
Modified
2024-03-07 06:01
Details
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_ct: fix skb leak and crash on ooo frags
act_ct adds skb->users before defragmentation. If frags arrive in order,
the last frag's reference is reset in:
inet_frag_reasm_prepare
skb_morph
which is not straightforward.
However when frags arrive out of order, nobody unref the last frag, and
all frags are leaked. The situation is even worse, as initiating packet
capture can lead to a crash[0] when skb has been cloned and shared at the
same time.
Fix the issue by removing skb_get() before defragmentation. act_ct
returns TC_ACT_CONSUMED when defrag failed or in progress.
[0]:
[ 843.804823] ------------[ cut here ]------------
[ 843.809659] kernel BUG at net/core/skbuff.c:2091!
[ 843.814516] invalid opcode: 0000 [#1] PREEMPT SMP
[ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G S 6.7.0-rc3 #2
[ 843.824107] Hardware name: XFUSION 1288H V6/BC13MBSBD, BIOS 1.29 11/25/2022
[ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300
[ 843.833805] Code: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 00 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b <0f> 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89
[ 843.843698] RSP: 0018:ffffc9000cce07c0 EFLAGS: 00010202
[ 843.848524] RAX: 0000000000000002 RBX: ffff88811a211d00 RCX: 0000000000000820
[ 843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00
[ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 0000000000000000
[ 843.862584] R10: 0000000000000000 R11: ffff8881109f0000 R12: 0000000000000880
[ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900
[ 843.871680] FS: 0000000000000000(0000) GS:ffff889ffffc0000(0000) knlGS:0000000000000000
[ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 843.880778] CR2: 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0
[ 843.885336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 843.889809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 843.894229] PKRU: 55555554
[ 843.898539] Call Trace:
[ 843.902772] <IRQ>
[ 843.906922] ? __die_body+0x1e/0x60
[ 843.911032] ? die+0x3c/0x60
[ 843.915037] ? do_trap+0xe2/0x110
[ 843.918911] ? pskb_expand_head+0x2ac/0x300
[ 843.922687] ? do_error_trap+0x65/0x80
[ 843.926342] ? pskb_expand_head+0x2ac/0x300
[ 843.929905] ? exc_invalid_op+0x50/0x60
[ 843.933398] ? pskb_expand_head+0x2ac/0x300
[ 843.936835] ? asm_exc_invalid_op+0x1a/0x20
[ 843.940226] ? pskb_expand_head+0x2ac/0x300
[ 843.943580] inet_frag_reasm_prepare+0xd1/0x240
[ 843.946904] ip_defrag+0x5d4/0x870
[ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conntrack]
[ 843.953334] tcf_ct_act+0x252/0xd90 [act_ct]
[ 843.956473] ? tcf_mirred_act+0x516/0x5a0 [act_mirred]
[ 843.959657] tcf_action_exec+0xa1/0x160
[ 843.962823] fl_classify+0x1db/0x1f0 [cls_flower]
[ 843.966010] ? skb_clone+0x53/0xc0
[ 843.969173] tcf_classify+0x24d/0x420
[ 843.972333] tc_run+0x8f/0xf0
[ 843.975465] __netif_receive_skb_core+0x67a/0x1080
[ 843.978634] ? dev_gro_receive+0x249/0x730
[ 843.981759] __netif_receive_skb_list_core+0x12d/0x260
[ 843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0
[ 843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core]
[ 843.991170] napi_complete_done+0x72/0x1a0
[ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core]
[ 843.997501] __napi_poll+0x25/0x1b0
[ 844.000627] net_rx_action+0x256/0x330
[ 844.003705] __do_softirq+0xb3/0x29b
[ 844.006718] irq_exit_rcu+0x9e/0xc0
[ 844.009672] common_interrupt+0x86/0xa0
[ 844.012537] </IRQ>
[ 844.015285] <TASK>
[ 844.017937] asm_common_interrupt+0x26/0x40
[ 844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20
[ 844.023247] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 65 48 8b 04 25 00 18 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 81 d0 44 00 fb
---truncated---
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-52610"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ct: fix skb leak and crash on ooo frags\n\nact_ct adds skb-\u003eusers before defragmentation. If frags arrive in order,\nthe last frag\u0027s reference is reset in:\n\n inet_frag_reasm_prepare\n skb_morph\n\nwhich is not straightforward.\n\nHowever when frags arrive out of order, nobody unref the last frag, and\nall frags are leaked. The situation is even worse, as initiating packet\ncapture can lead to a crash[0] when skb has been cloned and shared at the\nsame time.\n\nFix the issue by removing skb_get() before defragmentation. act_ct\nreturns TC_ACT_CONSUMED when defrag failed or in progress.\n\n[0]:\n[ 843.804823] ------------[ cut here ]------------\n[ 843.809659] kernel BUG at net/core/skbuff.c:2091!\n[ 843.814516] invalid opcode: 0000 [#1] PREEMPT SMP\n[ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G S 6.7.0-rc3 #2\n[ 843.824107] Hardware name: XFUSION 1288H V6/BC13MBSBD, BIOS 1.29 11/25/2022\n[ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300\n[ 843.833805] Code: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 00 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b \u003c0f\u003e 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89\n[ 843.843698] RSP: 0018:ffffc9000cce07c0 EFLAGS: 00010202\n[ 843.848524] RAX: 0000000000000002 RBX: ffff88811a211d00 RCX: 0000000000000820\n[ 843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00\n[ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 0000000000000000\n[ 843.862584] R10: 0000000000000000 R11: ffff8881109f0000 R12: 0000000000000880\n[ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900\n[ 843.871680] FS: 0000000000000000(0000) GS:ffff889ffffc0000(0000) knlGS:0000000000000000\n[ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 843.880778] CR2: 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0\n[ 843.885336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 843.889809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 843.894229] PKRU: 55555554\n[ 843.898539] Call Trace:\n[ 843.902772] \u003cIRQ\u003e\n[ 843.906922] ? __die_body+0x1e/0x60\n[ 843.911032] ? die+0x3c/0x60\n[ 843.915037] ? do_trap+0xe2/0x110\n[ 843.918911] ? pskb_expand_head+0x2ac/0x300\n[ 843.922687] ? do_error_trap+0x65/0x80\n[ 843.926342] ? pskb_expand_head+0x2ac/0x300\n[ 843.929905] ? exc_invalid_op+0x50/0x60\n[ 843.933398] ? pskb_expand_head+0x2ac/0x300\n[ 843.936835] ? asm_exc_invalid_op+0x1a/0x20\n[ 843.940226] ? pskb_expand_head+0x2ac/0x300\n[ 843.943580] inet_frag_reasm_prepare+0xd1/0x240\n[ 843.946904] ip_defrag+0x5d4/0x870\n[ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conntrack]\n[ 843.953334] tcf_ct_act+0x252/0xd90 [act_ct]\n[ 843.956473] ? tcf_mirred_act+0x516/0x5a0 [act_mirred]\n[ 843.959657] tcf_action_exec+0xa1/0x160\n[ 843.962823] fl_classify+0x1db/0x1f0 [cls_flower]\n[ 843.966010] ? skb_clone+0x53/0xc0\n[ 843.969173] tcf_classify+0x24d/0x420\n[ 843.972333] tc_run+0x8f/0xf0\n[ 843.975465] __netif_receive_skb_core+0x67a/0x1080\n[ 843.978634] ? dev_gro_receive+0x249/0x730\n[ 843.981759] __netif_receive_skb_list_core+0x12d/0x260\n[ 843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0\n[ 843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core]\n[ 843.991170] napi_complete_done+0x72/0x1a0\n[ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core]\n[ 843.997501] __napi_poll+0x25/0x1b0\n[ 844.000627] net_rx_action+0x256/0x330\n[ 844.003705] __do_softirq+0xb3/0x29b\n[ 844.006718] irq_exit_rcu+0x9e/0xc0\n[ 844.009672] common_interrupt+0x86/0xa0\n[ 844.012537] \u003c/IRQ\u003e\n[ 844.015285] \u003cTASK\u003e\n[ 844.017937] asm_common_interrupt+0x26/0x40\n[ 844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20\n[ 844.023247] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 65 48 8b 04 25 00 18 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 81 d0 44 00 fb\n---truncated---",
"id": "GSD-2023-52610",
"modified": "2024-03-07T06:01:45.319146Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2023-52610",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "b57dc7c13ea9",
"version_value": "172ba7d46c20"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"defaultStatus": "affected",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"lessThan": "5.3",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.148",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.75",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.14",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.2",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ct: fix skb leak and crash on ooo frags\n\nact_ct adds skb-\u003eusers before defragmentation. If frags arrive in order,\nthe last frag\u0027s reference is reset in:\n\n inet_frag_reasm_prepare\n skb_morph\n\nwhich is not straightforward.\n\nHowever when frags arrive out of order, nobody unref the last frag, and\nall frags are leaked. The situation is even worse, as initiating packet\ncapture can lead to a crash[0] when skb has been cloned and shared at the\nsame time.\n\nFix the issue by removing skb_get() before defragmentation. act_ct\nreturns TC_ACT_CONSUMED when defrag failed or in progress.\n\n[0]:\n[ 843.804823] ------------[ cut here ]------------\n[ 843.809659] kernel BUG at net/core/skbuff.c:2091!\n[ 843.814516] invalid opcode: 0000 [#1] PREEMPT SMP\n[ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G S 6.7.0-rc3 #2\n[ 843.824107] Hardware name: XFUSION 1288H V6/BC13MBSBD, BIOS 1.29 11/25/2022\n[ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300\n[ 843.833805] Code: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 00 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b \u003c0f\u003e 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89\n[ 843.843698] RSP: 0018:ffffc9000cce07c0 EFLAGS: 00010202\n[ 843.848524] RAX: 0000000000000002 RBX: ffff88811a211d00 RCX: 0000000000000820\n[ 843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00\n[ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 0000000000000000\n[ 843.862584] R10: 0000000000000000 R11: ffff8881109f0000 R12: 0000000000000880\n[ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900\n[ 843.871680] FS: 0000000000000000(0000) GS:ffff889ffffc0000(0000) knlGS:0000000000000000\n[ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 843.880778] CR2: 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0\n[ 843.885336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 843.889809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 843.894229] PKRU: 55555554\n[ 843.898539] Call Trace:\n[ 843.902772] \u003cIRQ\u003e\n[ 843.906922] ? __die_body+0x1e/0x60\n[ 843.911032] ? die+0x3c/0x60\n[ 843.915037] ? do_trap+0xe2/0x110\n[ 843.918911] ? pskb_expand_head+0x2ac/0x300\n[ 843.922687] ? do_error_trap+0x65/0x80\n[ 843.926342] ? pskb_expand_head+0x2ac/0x300\n[ 843.929905] ? exc_invalid_op+0x50/0x60\n[ 843.933398] ? pskb_expand_head+0x2ac/0x300\n[ 843.936835] ? asm_exc_invalid_op+0x1a/0x20\n[ 843.940226] ? pskb_expand_head+0x2ac/0x300\n[ 843.943580] inet_frag_reasm_prepare+0xd1/0x240\n[ 843.946904] ip_defrag+0x5d4/0x870\n[ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conntrack]\n[ 843.953334] tcf_ct_act+0x252/0xd90 [act_ct]\n[ 843.956473] ? tcf_mirred_act+0x516/0x5a0 [act_mirred]\n[ 843.959657] tcf_action_exec+0xa1/0x160\n[ 843.962823] fl_classify+0x1db/0x1f0 [cls_flower]\n[ 843.966010] ? skb_clone+0x53/0xc0\n[ 843.969173] tcf_classify+0x24d/0x420\n[ 843.972333] tc_run+0x8f/0xf0\n[ 843.975465] __netif_receive_skb_core+0x67a/0x1080\n[ 843.978634] ? dev_gro_receive+0x249/0x730\n[ 843.981759] __netif_receive_skb_list_core+0x12d/0x260\n[ 843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0\n[ 843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core]\n[ 843.991170] napi_complete_done+0x72/0x1a0\n[ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core]\n[ 843.997501] __napi_poll+0x25/0x1b0\n[ 844.000627] net_rx_action+0x256/0x330\n[ 844.003705] __do_softirq+0xb3/0x29b\n[ 844.006718] irq_exit_rcu+0x9e/0xc0\n[ 844.009672] common_interrupt+0x86/0xa0\n[ 844.012537] \u003c/IRQ\u003e\n[ 844.015285] \u003cTASK\u003e\n[ 844.017937] asm_common_interrupt+0x26/0x40\n[ 844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20\n[ 844.023247] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 65 48 8b 04 25 00 18 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 81 d0 44 00 fb\n---truncated---"
}
]
},
"generator": {
"engine": "bippy-8df59b4913de"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.kernel.org/stable/c/172ba7d46c202e679f3ccb10264c67416aaeb1c4",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/172ba7d46c202e679f3ccb10264c67416aaeb1c4"
},
{
"name": "https://git.kernel.org/stable/c/0b5b831122fc3789fff75be433ba3e4dd7b779d4",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/0b5b831122fc3789fff75be433ba3e4dd7b779d4"
},
{
"name": "https://git.kernel.org/stable/c/73f7da5fd124f2cda9161e2e46114915e6e82e97",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/73f7da5fd124f2cda9161e2e46114915e6e82e97"
},
{
"name": "https://git.kernel.org/stable/c/f5346df0591d10bc948761ca854b1fae6d2ef441",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/f5346df0591d10bc948761ca854b1fae6d2ef441"
},
{
"name": "https://git.kernel.org/stable/c/3f14b377d01d8357eba032b4cabc8c1149b458b6",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/3f14b377d01d8357eba032b4cabc8c1149b458b6"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ct: fix skb leak and crash on ooo frags\n\nact_ct adds skb-\u003eusers before defragmentation. If frags arrive in order,\nthe last frag\u0027s reference is reset in:\n\n inet_frag_reasm_prepare\n skb_morph\n\nwhich is not straightforward.\n\nHowever when frags arrive out of order, nobody unref the last frag, and\nall frags are leaked. The situation is even worse, as initiating packet\ncapture can lead to a crash[0] when skb has been cloned and shared at the\nsame time.\n\nFix the issue by removing skb_get() before defragmentation. act_ct\nreturns TC_ACT_CONSUMED when defrag failed or in progress.\n\n[0]:\n[ 843.804823] ------------[ cut here ]------------\n[ 843.809659] kernel BUG at net/core/skbuff.c:2091!\n[ 843.814516] invalid opcode: 0000 [#1] PREEMPT SMP\n[ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G S 6.7.0-rc3 #2\n[ 843.824107] Hardware name: XFUSION 1288H V6/BC13MBSBD, BIOS 1.29 11/25/2022\n[ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300\n[ 843.833805] Code: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 00 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b \u003c0f\u003e 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89\n[ 843.843698] RSP: 0018:ffffc9000cce07c0 EFLAGS: 00010202\n[ 843.848524] RAX: 0000000000000002 RBX: ffff88811a211d00 RCX: 0000000000000820\n[ 843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00\n[ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 0000000000000000\n[ 843.862584] R10: 0000000000000000 R11: ffff8881109f0000 R12: 0000000000000880\n[ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900\n[ 843.871680] FS: 0000000000000000(0000) GS:ffff889ffffc0000(0000) knlGS:0000000000000000\n[ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 843.880778] CR2: 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0\n[ 843.885336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 843.889809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 843.894229] PKRU: 55555554\n[ 843.898539] Call Trace:\n[ 843.902772] \u003cIRQ\u003e\n[ 843.906922] ? __die_body+0x1e/0x60\n[ 843.911032] ? die+0x3c/0x60\n[ 843.915037] ? do_trap+0xe2/0x110\n[ 843.918911] ? pskb_expand_head+0x2ac/0x300\n[ 843.922687] ? do_error_trap+0x65/0x80\n[ 843.926342] ? pskb_expand_head+0x2ac/0x300\n[ 843.929905] ? exc_invalid_op+0x50/0x60\n[ 843.933398] ? pskb_expand_head+0x2ac/0x300\n[ 843.936835] ? asm_exc_invalid_op+0x1a/0x20\n[ 843.940226] ? pskb_expand_head+0x2ac/0x300\n[ 843.943580] inet_frag_reasm_prepare+0xd1/0x240\n[ 843.946904] ip_defrag+0x5d4/0x870\n[ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conntrack]\n[ 843.953334] tcf_ct_act+0x252/0xd90 [act_ct]\n[ 843.956473] ? tcf_mirred_act+0x516/0x5a0 [act_mirred]\n[ 843.959657] tcf_action_exec+0xa1/0x160\n[ 843.962823] fl_classify+0x1db/0x1f0 [cls_flower]\n[ 843.966010] ? skb_clone+0x53/0xc0\n[ 843.969173] tcf_classify+0x24d/0x420\n[ 843.972333] tc_run+0x8f/0xf0\n[ 843.975465] __netif_receive_skb_core+0x67a/0x1080\n[ 843.978634] ? dev_gro_receive+0x249/0x730\n[ 843.981759] __netif_receive_skb_list_core+0x12d/0x260\n[ 843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0\n[ 843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core]\n[ 843.991170] napi_complete_done+0x72/0x1a0\n[ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core]\n[ 843.997501] __napi_poll+0x25/0x1b0\n[ 844.000627] net_rx_action+0x256/0x330\n[ 844.003705] __do_softirq+0xb3/0x29b\n[ 844.006718] irq_exit_rcu+0x9e/0xc0\n[ 844.009672] common_interrupt+0x86/0xa0\n[ 844.012537] \u003c/IRQ\u003e\n[ 844.015285] \u003cTASK\u003e\n[ 844.017937] asm_common_interrupt+0x26/0x40\n[ 844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20\n[ 844.023247] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 65 48 8b 04 25 00 18 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 81 d0 44 00 fb\n---truncated---"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net/sched: act_ct: corrige la fuga de skb y falla en ooo frags act_ct agrega usuarios de skb-\u0026gt; antes de la desfragmentaci\u00f3n. Si los fragmentos llegan en orden, la referencia del \u00faltimo fragmento se restablece en: inet_frag_reasm_prepare skb_morph, lo cual no es sencillo. Sin embargo, cuando los fragmentos llegan desordenados, nadie elimina la referencia del \u00faltimo fragmento y todos los fragmentos se filtran. La situaci\u00f3n es a\u00fan peor, ya que iniciar la captura de paquetes puede provocar una falla[0] cuando skb ha sido clonado y compartido al mismo tiempo. Solucione el problema eliminando skb_get() antes de la desfragmentaci\u00f3n. act_ct devuelve TC_ACT_CONSUMED cuando la desfragmentaci\u00f3n falla o est\u00e1 en progreso. [0]: [843.804823] ------------[ cortar aqu\u00ed ]------------ [ 843.809659] ERROR del kernel en net/core/skbuff.c:2091 ! [843.814516] c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP [ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: cargado Contaminado: GS 6.7.0-rc3 #2 [ 843.824107] Nombre de hardware: XFUSION 1288H V6/ BC13MBSBD, BIOS 1.29 25/11/2022 [ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300 [ 843.833805] C\u00f3digo: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 0 0 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b \u0026lt;0f\u0026gt; 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89 [ 843.843698] RSP: 0 018:ffffc9000cce07c0 EFLAGS: 00010202 [843.848524] RAX: 00000000000000002 RBX: ffff88811a211d00 RCX: 00000000000000820 [843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00 [ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 00000000000000000 [ 843.862584] R10: 00 00000000000000 R11: ffff8881109f0000 R12: 0000000000000880 [ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900 [ 843.871680] FS: 0000000000000000(0 000) GS:ffff889ffffc0000(0000) knlGS:00000000000000000 [ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 843.880778] CR2 : 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0 [ 843.885336] DR0: 00000000000000000 DR1: 00000000000000000 DR2: 000000000000000 00 [ 843.889809] DR3: 00000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 843.894229] PKRU: 55555554 [ 843.898539] Rastreo de llamadas: [ 843.90277 2] [843.906922] ? __die_body+0x1e/0x60 [ 843.911032] ? morir+0x3c/0x60 [843.915037]? do_trap+0xe2/0x110 [843.918911]? pskb_expand_head+0x2ac/0x300 [843.922687]? do_error_trap+0x65/0x80 [843.926342]? pskb_expand_head+0x2ac/0x300 [843.929905]? exc_invalid_op+0x50/0x60 [843.933398]? pskb_expand_head+0x2ac/0x300 [843.936835]? asm_exc_invalid_op+0x1a/0x20 [843.940226]? pskb_expand_head+0x2ac/0x300 [ 843.943580] inet_frag_reasm_prepare+0xd1/0x240 [ 843.946904] ip_defrag+0x5d4/0x870 [ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conn pista] [843.953334] tcf_ct_act+0x252/0xd90 [act_ct] [843.956473]? tcf_mirred_act+0x516/0x5a0 [act_mirred] [843.959657] tcf_action_exec+0xa1/0x160 [843.962823] fl_classify+0x1db/0x1f0 [cls_flower] [843.966010] ? skb_clone+0x53/0xc0 [ 843.969173] tcf_classify+0x24d/0x420 [ 843.972333] tc_run+0x8f/0xf0 [ 843.975465] __netif_receive_skb_core+0x67a/0x1080 [ 843.978634 ] ? dev_gro_receive+0x249/0x730 [843.981759] __netif_receive_skb_list_core+0x12d/0x260 [843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0 [843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core] [ 843.991170] napi_complete_done+0x72/0x1a0 [ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core] [ 843.997501] __napi_poll+0x25/0x1b0 [ 844.000627] net_rx_action+0x256/0x330 [ 844.003705] __do_softirq+0xb3/ 0x29b [ 844.006718] irq_exit_rcu+0x9e/0xc0 [ 844.009672] common_interrupt+0x86/0xa0 [ 844.012537] [ 844.015285] [ 844.017937] asm_common_interrupt+0x26 /0x40 [844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20 [ 844.023247] ---truncado ---"
}
],
"id": "CVE-2023-52610",
"lastModified": "2024-03-18T12:38:25.490",
"metrics": {},
"published": "2024-03-18T11:15:07.943",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0b5b831122fc3789fff75be433ba3e4dd7b779d4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/172ba7d46c202e679f3ccb10264c67416aaeb1c4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3f14b377d01d8357eba032b4cabc8c1149b458b6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/73f7da5fd124f2cda9161e2e46114915e6e82e97"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f5346df0591d10bc948761ca854b1fae6d2ef441"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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