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cvelist/2024/50xxx/CVE-2024-50261.json

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"-Synchronized-Data."
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{
"-Synchronized-Data."
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"data_version": "4.0",
"-Synchronized-Data."
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-50261",
"-Synchronized-Data."
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"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
"-Synchronized-Data."
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},
"description": {
"description_data": [
{
"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacsec: Fix use-after-free while sending the offloading packet\n\nKASAN reports the following UAF. The metadata_dst, which is used to\nstore the SCI value for macsec offload, is already freed by\nmetadata_dst_free() in macsec_free_netdev(), while driver still use it\nfor sending the packet.\n\nTo fix this issue, dst_release() is used instead to release\nmetadata_dst. So it is not freed instantly in macsec_free_netdev() if\nstill referenced by skb.\n\n BUG: KASAN: slab-use-after-free in mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n Read of size 2 at addr ffff88813e42e038 by task kworker/7:2/714\n [...]\n Workqueue: mld mld_ifc_work\n Call Trace:\n <TASK>\n dump_stack_lvl+0x51/0x60\n print_report+0xc1/0x600\n kasan_report+0xab/0xe0\n mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n dev_hard_start_xmit+0x120/0x530\n sch_direct_xmit+0x149/0x11e0\n __qdisc_run+0x3ad/0x1730\n __dev_queue_xmit+0x1196/0x2ed0\n vlan_dev_hard_start_xmit+0x32e/0x510 [8021q]\n dev_hard_start_xmit+0x120/0x530\n __dev_queue_xmit+0x14a7/0x2ed0\n macsec_start_xmit+0x13e9/0x2340\n dev_hard_start_xmit+0x120/0x530\n __dev_queue_xmit+0x14a7/0x2ed0\n ip6_finish_output2+0x923/0x1a70\n ip6_finish_output+0x2d7/0x970\n ip6_output+0x1ce/0x3a0\n NF_HOOK.constprop.0+0x15f/0x190\n mld_sendpack+0x59a/0xbd0\n mld_ifc_work+0x48a/0xa80\n process_one_work+0x5aa/0xe50\n worker_thread+0x79c/0x1290\n kthread+0x28f/0x350\n ret_from_fork+0x2d/0x70\n ret_from_fork_asm+0x11/0x20\n </TASK>\n\n Allocated by task 3922:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n __kasan_kmalloc+0x77/0x90\n __kmalloc_noprof+0x188/0x400\n metadata_dst_alloc+0x1f/0x4e0\n macsec_newlink+0x914/0x1410\n __rtnl_newlink+0xe08/0x15b0\n rtnl_newlink+0x5f/0x90\n rtnetlink_rcv_msg+0x667/0xa80\n netlink_rcv_skb+0x12c/0x360\n netlink_unicast+0x551/0x770\n netlink_sendmsg+0x72d/0xbd0\n __sock_sendmsg+0xc5/0x190\n ____sys_sendmsg+0x52e/0x6a0\n ___sys_sendmsg+0xeb/0x170\n __sys_sendmsg+0xb5/0x140\n do_syscall_64+0x4c/0x100\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n Freed by task 4011:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n kasan_save_free_info+0x37/0x50\n poison_slab_object+0x10c/0x190\n __kasan_slab_free+0x11/0x30\n kfree+0xe0/0x290\n macsec_free_netdev+0x3f/0x140\n netdev_run_todo+0x450/0xc70\n rtnetlink_rcv_msg+0x66f/0xa80\n netlink_rcv_skb+0x12c/0x360\n netlink_unicast+0x551/0x770\n netlink_sendmsg+0x72d/0xbd0\n __sock_sendmsg+0xc5/0x190\n ____sys_sendmsg+0x52e/0x6a0\n ___sys_sendmsg+0xeb/0x170\n __sys_sendmsg+0xb5/0x140\n do_syscall_64+0x4c/0x100\n entry_SYSCALL_64_after_hwframe+0x4b/0x53"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
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}
]
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},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "0a28bfd4971f",
"version_value": "872932cf75cf"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "6.1",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.1",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.116",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.60",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11.7",
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"-Synchronized-Data."
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"version": "6.12",
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"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/872932cf75cf859804370a265dd58118129386fa",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/872932cf75cf859804370a265dd58118129386fa"
},
{
"url": "https://git.kernel.org/stable/c/9f5ae743dbe9a2458540a7d35fff0f990df025cf",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/9f5ae743dbe9a2458540a7d35fff0f990df025cf"
},
{
"url": "https://git.kernel.org/stable/c/4614640f1d5c93c22272117dc256e9940ccac8e8",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/4614640f1d5c93c22272117dc256e9940ccac8e8"
},
{
"url": "https://git.kernel.org/stable/c/f1e54d11b210b53d418ff1476c6b58a2f434dfc0",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/f1e54d11b210b53d418ff1476c6b58a2f434dfc0"
}
]
},
"generator": {
"-Synchronized-Data."
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"engine": "bippy-8e903de6a542"
"-Synchronized-Data."
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}
}
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