GHSA-732J-JG49-J2PR
Vulnerability from github – Published: 2025-12-24 15:30 – Updated: 2026-08-04 12:34In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix race condition in hidp_session_thread
There is a potential race condition in hidp_session_thread that may lead to use-after-free. For instance, the timer is active while hidp_del_timer is called in hidp_session_thread(). After hidp_session_put, then 'session' will be freed, causing kernel panic when hidp_idle_timeout is running.
The solution is to use del_timer_sync instead of del_timer.
Here is the call trace:
? hidp_session_probe+0x780/0x780 call_timer_fn+0x2d/0x1e0 __run_timers.part.0+0x569/0x940 hidp_session_probe+0x780/0x780 call_timer_fn+0x1e0/0x1e0 ktime_get+0x5c/0xf0 lapic_next_deadline+0x2c/0x40 clockevents_program_event+0x205/0x320 run_timer_softirq+0xa9/0x1b0 __do_softirq+0x1b9/0x641 __irq_exit_rcu+0xdc/0x190 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0xa1/0xc0
{
"affected": [],
"aliases": [
"CVE-2023-54120"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-24T13:16:13Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix race condition in hidp_session_thread\n\nThere is a potential race condition in hidp_session_thread that may\nlead to use-after-free. For instance, the timer is active while\nhidp_del_timer is called in hidp_session_thread(). After hidp_session_put,\nthen \u0027session\u0027 will be freed, causing kernel panic when hidp_idle_timeout\nis running.\n\nThe solution is to use del_timer_sync instead of del_timer.\n\nHere is the call trace:\n\n? hidp_session_probe+0x780/0x780\ncall_timer_fn+0x2d/0x1e0\n__run_timers.part.0+0x569/0x940\nhidp_session_probe+0x780/0x780\ncall_timer_fn+0x1e0/0x1e0\nktime_get+0x5c/0xf0\nlapic_next_deadline+0x2c/0x40\nclockevents_program_event+0x205/0x320\nrun_timer_softirq+0xa9/0x1b0\n__do_softirq+0x1b9/0x641\n__irq_exit_rcu+0xdc/0x190\nirq_exit_rcu+0xe/0x20\nsysvec_apic_timer_interrupt+0xa1/0xc0",
"id": "GHSA-732j-jg49-j2pr",
"modified": "2026-08-04T12:34:44Z",
"published": "2025-12-24T15:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54120"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0efb276d5848a3accc37c6f41b85e442c4768169"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/152f47bd6b995e0e98c85672f6d19894bc287ef2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/248af9feca062a4ca9c3f2ccf67056c8a5eb817f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f3d214d19899183d4e0cce7552998262112e4ab"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8a99e6200c38b78a45dcd12a6bdc43fdf4dc36be"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c95930abd687fcd1aa040dc4fe90dff947916460"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f6719fd8f409fa1da8dc956e93822d25e1e8b360"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7ec5ca433ceead8d9d78fd2febff094f289441d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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