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CVE-2024-44962— Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading

AI Predicted 5.5 Difficulty: Easy EPSS 0.21% · P11

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux689ca16e523278470c38832a3010645a78c544d8< 4d9adcb94d55e9be8a3e464d9f2ff7d27e2ed016affected
689ca16e523278470c38832a3010645a78c544d8< 28bbb5011a9723700006da67bdb57ab6a914452baffected
689ca16e523278470c38832a3010645a78c544d8< 0d0df1e750bac0fdaa77940e711c1625cff08d33affected
6.4affected
< 6.4unaffected
6.6.46≤ 6.6.*unaffected
6.10.5≤ 6.10.*unaffected
6.11≤ *unaffected
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I. Basic Information for CVE-2024-44962

Vulnerability Information
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Vulnerability Title
Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading When unload the btnxpuart driver, its associated timer will be deleted. If the timer happens to be modified at this moment, it leads to the kernel call this timer even after the driver unloaded, resulting in kernel panic. Use timer_shutdown_sync() instead of del_timer_sync() to prevent rearming. panic log: Internal error: Oops: 0000000086000007 [#1] PREEMPT SMP Modules linked in: algif_hash algif_skcipher af_alg moal(O) mlan(O) crct10dif_ce polyval_ce polyval_generic snd_soc_imx_card snd_soc_fsl_asoc_card snd_soc_imx_audmux mxc_jpeg_encdec v4l2_jpeg snd_soc_wm8962 snd_soc_fsl_micfil snd_soc_fsl_sai flexcan snd_soc_fsl_utils ap130x rpmsg_ctrl imx_pcm_dma can_dev rpmsg_char pwm_fan fuse [last unloaded: btnxpuart] CPU: 5 PID: 723 Comm: memtester Tainted: G O 6.6.23-lts-next-06207-g4aef2658ac28 #1 Hardware name: NXP i.MX95 19X19 board (DT) pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : 0xffff80007a2cf464 lr : call_timer_fn.isra.0+0x24/0x80 ... Call trace: 0xffff80007a2cf464 __run_timers+0x234/0x280 run_timer_softirq+0x20/0x40 __do_softirq+0x100/0x26c ____do_softirq+0x10/0x1c call_on_irq_stack+0x24/0x4c do_softirq_own_stack+0x1c/0x2c irq_exit_rcu+0xc0/0xdc el0_interrupt+0x54/0xd8 __el0_irq_handler_common+0x18/0x24 el0t_64_irq_handler+0x10/0x1c el0t_64_irq+0x190/0x194 Code: ???????? ???????? ???????? ???????? (????????) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Oops: Fatal exception in interrupt SMP: stopping secondary CPUs Kernel Offset: disabled CPU features: 0x0,c0000000,40028143,1000721b Memory Limit: none ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于Bluetooth: btnxpuart组件存在驱动卸载时定时器重复触发漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 689ca16e523278470c38832a3010645a78c544d8 ~ 4d9adcb94d55e9be8a3e464d9f2ff7d27e2ed016 -
LinuxLinux 6.4 -

II. Public POCs for CVE-2024-44962

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III. Intelligence Information for CVE-2024-44962

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Patches & Fixes for CVE-2024-44962 (3)

Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total

CVE-2024-4498410.0 CRITICALbnxt_en: Fix double DMA unmapping for XDP_REDIRECT
CVE-2024-449859.8 CRITICALipv6: prevent possible UAF in ip6_xmit()
CVE-2024-449709.8 CRITICALnet/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-449989.8 CRITICALatm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-449948.8 HIGHiommu: Restore lost return in iommu_report_device_fault()
CVE-2024-449888.8 HIGHnet: dsa: mv88e6xxx: Fix out-of-bound access
CVE-2024-449868.1 HIGHipv6: fix possible UAF in ip6_finish_output2()
CVE-2024-449738.1 HIGHmm, slub: do not call do_slab_free for kfence object
CVE-2024-449957.8 HIGHnet: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-449747.8 HIGHmptcp: pm: avoid possible UaF when selecting endp
CVE-2024-449787.8 HIGHdrm/xe: Free job before xe_exec_queue_put
CVE-2024-449677.8 HIGHdrm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-449977.8 HIGHnet: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-449547.8 HIGHALSA: line6: Fix racy access to midibuf
CVE-2024-450007.8 HIGHfs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-449517.8 HIGHserial: sc16is7xx: fix TX fifo corruption
CVE-2024-449597.8 HIGHtracefs: Use generic inode RCU for synchronizing freeing
CVE-2024-449877.8 HIGHipv6: prevent UAF in ip6_send_skb()
CVE-2024-449497.8 HIGHparisc: fix a possible DMA corruption
CVE-2024-449667.8 HIGHbinfmt_flat: Fix corruption when not offsetting data start

Showing top 20 of 58 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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