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nvd-json-data-feeds/CVE-2022/CVE-2022-490xx/CVE-2022-49087.json
cad-safe-bot 6a206bf025 Auto-Update: 2025-03-09T03:00:19.873769+00:00
2025-03-09 03:03:50 +00:00

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{
"id": "CVE-2022-49087",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-02-26T07:00:46.043",
"lastModified": "2025-02-27T19:15:41.493",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: fix a race in rxrpc_exit_net()\n\nCurrent code can lead to the following race:\n\nCPU0 CPU1\n\nrxrpc_exit_net()\n rxrpc_peer_keepalive_worker()\n if (rxnet->live)\n\n rxnet->live = false;\n del_timer_sync(&rxnet->peer_keepalive_timer);\n\n timer_reduce(&rxnet->peer_keepalive_timer, jiffies + delay);\n\n cancel_work_sync(&rxnet->peer_keepalive_work);\n\nrxrpc_exit_net() exits while peer_keepalive_timer is still armed,\nleading to use-after-free.\n\nsyzbot report was:\n\nODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0\nWARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505\nModules linked in:\nCPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nWorkqueue: netns cleanup_net\nRIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505\nCode: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 1c 26 8a 4c 89 ee 48 c7 c7 00 10 26 8a e8 b1 e7 28 05 <0f> 0b 83 05 15 eb c5 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3\nRSP: 0018:ffffc9000353fb00 EFLAGS: 00010082\nRAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000\nRDX: ffff888029196140 RSI: ffffffff815efad8 RDI: fffff520006a7f52\nRBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000\nR10: ffffffff815ea4ae R11: 0000000000000000 R12: ffffffff89ce23e0\nR13: ffffffff8a2614e0 R14: ffffffff816628c0 R15: dffffc0000000000\nFS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fe1f2908924 CR3: 0000000043720000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n __debug_check_no_obj_freed lib/debugobjects.c:992 [inline]\n debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1023\n kfree+0xd6/0x310 mm/slab.c:3809\n ops_free_list.part.0+0x119/0x370 net/core/net_namespace.c:176\n ops_free_list net/core/net_namespace.c:174 [inline]\n cleanup_net+0x591/0xb00 net/core/net_namespace.c:598\n process_one_work+0x996/0x1610 kernel/workqueue.c:2289\n worker_thread+0x665/0x1080 kernel/workqueue.c:2436\n kthread+0x2e9/0x3a0 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298\n </TASK>"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rxrpc: se corrige una ejecuci\u00f3n en rxrpc_exit_net() El c\u00f3digo actual puede llevar a la siguiente ejecuci\u00f3n: CPU0 CPU1 rxrpc_exit_net() rxrpc_peer_keepalive_worker() if (rxnet-&gt;live) rxnet-&gt;live = false; del_timer_sync(&amp;rxnet-&gt;peer_keepalive_timer); timer_reduce(&amp;rxnet-&gt;peer_keepalive_timer, jiffies + delay); cancel_work_sync(&amp;rxnet-&gt;peer_keepalive_work); rxrpc_exit_net() sale mientras peer_keepalive_timer todav\u00eda est\u00e1 armado, lo que lleva a un use-after-free. El informe de syzbot fue: ODEBUG: activo libre (estado activo 0) tipo de objeto: timer_list sugerencia: rxrpc_peer_keepalive_timeout+0x0/0xb0 ADVERTENCIA: CPU: 0 PID: 3660 en lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505 M\u00f3dulos vinculados en: CPU: 0 PID: 3660 Comm: kworker/u4:6 No contaminado 5.17.0-syzkaller-13993-g88e6c0207623 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Cola de trabajo: netns cleanup_net RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505 C\u00f3digo: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 1c 26 8a 4c 89 ee 48 c7 c7 00 10 26 8a e8 b1 e7 28 05 &lt;0f&gt; 0b 83 05 15 eb c5 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc9000353fb00 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 00000000000000003 RCX: 0000000000000000 RDX: ffff888029196140 RSI: ffffffff815efad8 RDI: fffff520006a7f52 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ea4ae R11: 0000000000000000 R12: ffffffff89ce23e0 R13: ffffffff8a2614e0 R14: ffffffff816628c0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe1f2908924 CR3: 0000000043720000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: __debug_check_no_obj_freed lib/debugobjects.c:992 [en l\u00ednea] debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1023 kfree+0xd6/0x310 mm/slab.c:3809 ops_free_list.part.0+0x119/0x370 net/core/net_namespace.c:176 ops_free_list net/core/net_namespace.c:174 [en l\u00ednea] cleanup_net+0x591/0xb00 net/core/net_namespace.c:598 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 "
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/08ff0e74fab517dbc44e11b8bc683dd4ecc65950",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/1946014ca3b19be9e485e780e862c375c6f98bad",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/41024a40f6c793abbb916a857f18fb009f07464c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/571d8e1d154ca18f08dcb72b69318d36e10010a0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7ee84d29f22de6f6c63fad6c54690517659862f1",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/864297ee30727ae6233f80296b7fc91442620b05",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cd8aef1f30d1215648e4e6686cfb422004851429",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}
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