CVE-2024-50122— PCI: Hold rescan lock while adding devices during host probe
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I. Basic Information for CVE-2024-50122
Vulnerability Information
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Vulnerability Title
PCI: Hold rescan lock while adding devices during host probe
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: PCI: Hold rescan lock while adding devices during host probe Since adding the PCI power control code, we may end up with a race between the pwrctl platform device rescanning the bus and host controller probe functions. The latter need to take the rescan lock when adding devices or we may end up in an undefined state having two incompletely added devices and hit the following crash when trying to remove the device over sysfs: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP Call trace: __pi_strlen+0x14/0x150 kernfs_find_ns+0x80/0x13c kernfs_remove_by_name_ns+0x54/0xf0 sysfs_remove_bin_file+0x24/0x34 pci_remove_resource_files+0x3c/0x84 pci_remove_sysfs_dev_files+0x28/0x38 pci_stop_bus_device+0x8c/0xd8 pci_stop_bus_device+0x40/0xd8 pci_stop_and_remove_bus_device_locked+0x28/0x48 remove_store+0x70/0xb0 dev_attr_store+0x20/0x38 sysfs_kf_write+0x58/0x78 kernfs_fop_write_iter+0xe8/0x184 vfs_write+0x2dc/0x308 ksys_write+0x7c/0xec
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PCI模块在添加设备时未能正确持有重新扫描锁，可能导致内核崩溃。
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-2024-50122
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Same Patch Batch · Linux · 2024-11-05 · 50 CVEs total
| CVE-2024-50123 | bpf: Add the missing BPF_LINK_TYPE invocation for sockmap | |
| CVE-2024-50129 | net: pse-pd: Fix out of bound for loop | |
| CVE-2024-50134 | drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA | |
| CVE-2024-50136 | net/mlx5: Unregister notifier on eswitch init failure | |
| CVE-2024-50135 | nvme-pci: fix race condition between reset and nvme_dev_disable() | |
| CVE-2024-50137 | reset: starfive: jh71x0: Fix accessing the empty member on JH7110 SoC | |
| CVE-2024-50138 | bpf: Use raw_spinlock_t in ringbuf | |
| CVE-2024-50132 | tracing/probes: Fix MAX_TRACE_ARGS limit handling | |
| CVE-2024-50127 | net: sched: fix use-after-free in taprio_change() | |
| CVE-2024-50125 | Bluetooth: SCO: Fix UAF on sco_sock_timeout | |
| CVE-2024-50126 | net: sched: use RCU read-side critical section in taprio_dump() | |
| CVE-2024-50124 | Bluetooth: ISO: Fix UAF on iso_sock_timeout | |
| CVE-2024-50121 | nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net | |
| CVE-2024-50120 | smb: client: Handle kstrdup failures for passwords | |
| CVE-2024-50119 | cifs: fix warning when destroy 'cifs_io_request_pool' | |
| CVE-2024-50118 | btrfs: reject ro->rw reconfiguration if there are hard ro requirements | |
| CVE-2024-50117 | drm/amd: Guard against bad data for ATIF ACPI method | |
| CVE-2024-50116 | nilfs2: fix kernel bug due to missing clearing of buffer delay flag | |
| CVE-2024-50115 | KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory | |
| CVE-2024-50114 | KVM: arm64: Unregister redistributor for failed vCPU creation |
Showing top 20 of 50 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-2024-50122
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