GHSA-9HHF-J948-M466
Vulnerability from github – Published: 2024-05-21 18:31 – Updated: 2024-07-03 18:42In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: don't return unset power in ieee80211_get_tx_power()
We can get a UBSAN warning if ieee80211_get_tx_power() returns the INT_MIN value mac80211 internally uses for "unset power level".
UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5 -2147483648 * 100 cannot be represented in type 'int' CPU: 0 PID: 20433 Comm: insmod Tainted: G WC OE Call Trace: dump_stack+0x74/0x92 ubsan_epilogue+0x9/0x50 handle_overflow+0x8d/0xd0 __ubsan_handle_mul_overflow+0xe/0x10 nl80211_send_iface+0x688/0x6b0 [cfg80211] [...] cfg80211_register_wdev+0x78/0xb0 [cfg80211] cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211] [...] ieee80211_if_add+0x60e/0x8f0 [mac80211] ieee80211_register_hw+0xda5/0x1170 [mac80211]
In this case, simply return an error instead, to indicate that no data is available.
{
"affected": [],
"aliases": [
"CVE-2023-52832"
],
"database_specific": {
"cwe_ids": [
"CWE-920"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T16:15:20Z",
"severity": "CRITICAL"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: don\u0027t return unset power in ieee80211_get_tx_power()\n\nWe can get a UBSAN warning if ieee80211_get_tx_power() returns the\nINT_MIN value mac80211 internally uses for \"unset power level\".\n\n UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5\n -2147483648 * 100 cannot be represented in type \u0027int\u0027\n CPU: 0 PID: 20433 Comm: insmod Tainted: G WC OE\n Call Trace:\n dump_stack+0x74/0x92\n ubsan_epilogue+0x9/0x50\n handle_overflow+0x8d/0xd0\n __ubsan_handle_mul_overflow+0xe/0x10\n nl80211_send_iface+0x688/0x6b0 [cfg80211]\n [...]\n cfg80211_register_wdev+0x78/0xb0 [cfg80211]\n cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211]\n [...]\n ieee80211_if_add+0x60e/0x8f0 [mac80211]\n ieee80211_register_hw+0xda5/0x1170 [mac80211]\n\nIn this case, simply return an error instead, to indicate\nthat no data is available.",
"id": "GHSA-9hhf-j948-m466",
"modified": "2024-07-03T18:42:57Z",
"published": "2024-05-21T18:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52832"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1571120c44dbe5757aee1612c5b6097cdc42710f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/21a0f310a9f3bfd2b4cf4f382430e638607db846"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/298e767362cade639b7121ecb3cc5345b6529f62"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2be24c47ac19bf639c48c082486c08888bd603c6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5a94cffe90e20e8fade0b9abd4370bd671fe87c7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/717de20abdcd1d4993fa450e28b8086a352620ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/adc2474d823fe81d8da759207f4f1d3691aa775a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e160ab85166e77347d0cbe5149045cb25e83937f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/efeae5f4972f75d50002bc50eb112ab9e7069b18"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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