CVE-2024-53210 (GCVE-0-2024-53210)
Vulnerability from cvelistv5
Published
2024-12-27 13:49
Modified
2026-05-11 20:52
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/iucv: MSG_PEEK causes memory leak in iucv_sock_destruct() Passing MSG_PEEK flag to skb_recv_datagram() increments skb refcount (skb->users) and iucv_sock_recvmsg() does not decrement skb refcount at exit. This results in skb memory leak in skb_queue_purge() and WARN_ON in iucv_sock_destruct() during socket close. To fix this decrease skb refcount by one if MSG_PEEK is set in order to prevent memory leak and WARN_ON. WARNING: CPU: 2 PID: 6292 at net/iucv/af_iucv.c:286 iucv_sock_destruct+0x144/0x1a0 [af_iucv] CPU: 2 PID: 6292 Comm: afiucv_test_msg Kdump: loaded Tainted: G W 6.10.0-rc7 #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<001587c682c4aa98>] iucv_sock_destruct+0x148/0x1a0 [af_iucv] [<001587c682c4a9d0>] iucv_sock_destruct+0x80/0x1a0 [af_iucv] [<001587c704117a32>] __sk_destruct+0x52/0x550 [<001587c704104a54>] __sock_release+0xa4/0x230 [<001587c704104c0c>] sock_close+0x2c/0x40 [<001587c702c5f5a8>] __fput+0x2e8/0x970 [<001587c7024148c4>] task_work_run+0x1c4/0x2c0 [<001587c7023b0716>] do_exit+0x996/0x1050 [<001587c7023b13aa>] do_group_exit+0x13a/0x360 [<001587c7023b1626>] __s390x_sys_exit_group+0x56/0x60 [<001587c7022bccca>] do_syscall+0x27a/0x380 [<001587c7049a6a0c>] __do_syscall+0x9c/0x160 [<001587c7049ce8a8>] system_call+0x70/0x98 Last Breaking-Event-Address: [<001587c682c4a9d4>] iucv_sock_destruct+0x84/0x1a0 [af_iucv]
References
Impacted products
Vendor Product Version
Linux Linux Version: eac3731bd04c7131478722a3c148b78774553116
Version: eac3731bd04c7131478722a3c148b78774553116
Version: eac3731bd04c7131478722a3c148b78774553116
Version: eac3731bd04c7131478722a3c148b78774553116
Version: eac3731bd04c7131478722a3c148b78774553116
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              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
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              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/iucv: MSG_PEEK causes memory leak in iucv_sock_destruct()\n\nPassing MSG_PEEK flag to skb_recv_datagram() increments skb refcount\n(skb-\u003eusers) and iucv_sock_recvmsg() does not decrement skb refcount\nat exit.\nThis results in skb memory leak in skb_queue_purge() and WARN_ON in\niucv_sock_destruct() during socket close. To fix this decrease\nskb refcount by one if MSG_PEEK is set in order to prevent memory\nleak and WARN_ON.\n\nWARNING: CPU: 2 PID: 6292 at net/iucv/af_iucv.c:286 iucv_sock_destruct+0x144/0x1a0 [af_iucv]\nCPU: 2 PID: 6292 Comm: afiucv_test_msg Kdump: loaded Tainted: G        W          6.10.0-rc7 #1\nHardware name: IBM 3931 A01 704 (z/VM 7.3.0)\nCall Trace:\n        [\u003c001587c682c4aa98\u003e] iucv_sock_destruct+0x148/0x1a0 [af_iucv]\n        [\u003c001587c682c4a9d0\u003e] iucv_sock_destruct+0x80/0x1a0 [af_iucv]\n        [\u003c001587c704117a32\u003e] __sk_destruct+0x52/0x550\n        [\u003c001587c704104a54\u003e] __sock_release+0xa4/0x230\n        [\u003c001587c704104c0c\u003e] sock_close+0x2c/0x40\n        [\u003c001587c702c5f5a8\u003e] __fput+0x2e8/0x970\n        [\u003c001587c7024148c4\u003e] task_work_run+0x1c4/0x2c0\n        [\u003c001587c7023b0716\u003e] do_exit+0x996/0x1050\n        [\u003c001587c7023b13aa\u003e] do_group_exit+0x13a/0x360\n        [\u003c001587c7023b1626\u003e] __s390x_sys_exit_group+0x56/0x60\n        [\u003c001587c7022bccca\u003e] do_syscall+0x27a/0x380\n        [\u003c001587c7049a6a0c\u003e] __do_syscall+0x9c/0x160\n        [\u003c001587c7049ce8a8\u003e] system_call+0x70/0x98\n        Last Breaking-Event-Address:\n        [\u003c001587c682c4a9d4\u003e] iucv_sock_destruct+0x84/0x1a0 [af_iucv]"
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/934326aef7ac4652f81c69d18bf44eebaefc39c3"
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          "url": "https://git.kernel.org/stable/c/ebaf81317e42aa990ad20b113cfe3a7b20d4e937"
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    "cveId": "CVE-2024-53210",
    "datePublished": "2024-12-27T13:49:56.183Z",
    "dateReserved": "2024-11-19T17:17:25.020Z",
    "dateUpdated": "2026-05-11T20:52:58.537Z",
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