CVE-2024-44937— platform/x86: intel-vbtn: Protect ACPI notify handler against recursion
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I. Basic Information for CVE-2024-44937
Vulnerability Information
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Vulnerability Title
platform/x86: intel-vbtn: Protect ACPI notify handler against recursion
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-vbtn: Protect ACPI notify handler against recursion Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs") ACPI notify handlers like the intel-vbtn notify_handler() may run on multiple CPU cores racing with themselves. This race gets hit on Dell Venue 7140 tablets when undocking from the keyboard, causing the handler to try and register priv->switches_dev twice, as can be seen from the dev_info() message getting logged twice: [ 83.861800] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event [ 83.861858] input: Intel Virtual Switches as /devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17 [ 83.861865] intel-vbtn INT33D6:00: Registering Intel Virtual Switches input-dev after receiving a switch event After which things go seriously wrong: [ 83.861872] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input17' ... [ 83.861967] kobject: kobject_add_internal failed for input17 with -EEXIST, don't try to register things with the same name in the same directory. [ 83.877338] BUG: kernel NULL pointer dereference, address: 0000000000000018 ... Protect intel-vbtn notify_handler() from racing with itself with a mutex to fix this.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于在ACPI通知处理程序中存在递归问题。
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
II. Public POCs for CVE-2024-44937
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Same Patch Batch · Linux · 2024-08-26 · 39 CVEs total
| CVE-2024-44933 | bnxt_en : Fix memory out-of-bounds in bnxt_fill_hw_rss_tbl() | |
| CVE-2024-43908 | drm/amdgpu: Fix the null pointer dereference to ras_manager | |
| CVE-2024-43909 | drm/amdgpu/pm: Fix the null pointer dereference for smu7 | |
| CVE-2024-43910 | bpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses | |
| CVE-2024-43911 | wifi: mac80211: fix NULL dereference at band check in starting tx ba session | |
| CVE-2024-43912 | wifi: nl80211: disallow setting special AP channel widths | |
| CVE-2024-43913 | nvme: apple: fix device reference counting | |
| CVE-2024-43914 | md/raid5: avoid BUG_ON() while continue reshape after reassembling | |
| CVE-2024-44931 | gpio: prevent potential speculation leaks in gpio_device_get_desc() | |
| CVE-2024-44932 | idpf: fix UAFs when destroying the queues | |
| CVE-2024-43907 | drm/amdgpu/pm: Fix the null pointer dereference in apply_state_adjust_rules | |
| CVE-2024-44934 | net: bridge: mcast: wait for previous gc cycles when removing port | |
| CVE-2024-44935 | sctp: Fix null-ptr-deref in reuseport_add_sock(). | |
| CVE-2024-44936 | power: supply: rt5033: Bring back i2c_set_clientdata | |
| CVE-2024-44938 | jfs: Fix shift-out-of-bounds in dbDiscardAG | |
| CVE-2024-44939 | jfs: fix null ptr deref in dtInsertEntry | |
| CVE-2024-44940 | fou: remove warn in gue_gro_receive on unsupported protocol | |
| CVE-2024-44941 | f2fs: fix to cover read extent cache access with lock | |
| CVE-2024-44942 | f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC | |
| CVE-2024-43896 | ASoC: cs-amp-lib: Fix NULL pointer crash if efi.get_variable is NULL |
Showing top 20 of 39 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-44937
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