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CVE-2022-49525— media: cx25821: Fix the warning when removing the module

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于移除模块时未正确释放irq目录，可能导致警告。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1001 · Data Obfuscation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 4d6295b6d986476232332fffd08575b185f90d81 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 5beb85ff7d005ddb7bf604a4f2dc76f01b84b318 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 258639bc55a586ee6df92d89786ccf1c71546d70 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 222292930c8ecc3516e03ec1f9fa8448be7ff496 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 3f94169affa33c9db4a439d88f09cb2ed3a33332 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 1f0fc1dfb5fdd456657519a97fab83691b96c6a0 affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 9d92291698e5cc35a2b8a1106a01ddd7d60ade2d affected
02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b< 005fd553f5f10fe8618d92f94ad10f9051eac331 affected
… +12 more rows
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I. Basic Information for CVE-2022-49525

Vulnerability Information
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Vulnerability Title
media: cx25821: Fix the warning when removing the module
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: cx25821: Fix the warning when removing the module When removing the module, we will get the following warning: [ 14.746697] remove_proc_entry: removing non-empty directory 'irq/21', leaking at least 'cx25821[1]' [ 14.747449] WARNING: CPU: 4 PID: 368 at fs/proc/generic.c:717 remove_proc_entry+0x389/0x3f0 [ 14.751611] RIP: 0010:remove_proc_entry+0x389/0x3f0 [ 14.759589] Call Trace: [ 14.759792] <TASK> [ 14.759975] unregister_irq_proc+0x14c/0x170 [ 14.760340] irq_free_descs+0x94/0xe0 [ 14.760640] mp_unmap_irq+0xb6/0x100 [ 14.760937] acpi_unregister_gsi_ioapic+0x27/0x40 [ 14.761334] acpi_pci_irq_disable+0x1d3/0x320 [ 14.761688] pci_disable_device+0x1ad/0x380 [ 14.762027] ? _raw_spin_unlock_irqrestore+0x2d/0x60 [ 14.762442] ? cx25821_shutdown+0x20/0x9f0 [cx25821] [ 14.762848] cx25821_finidev+0x48/0xc0 [cx25821] [ 14.763242] pci_device_remove+0x92/0x240 Fix this by freeing the irq before call pci_disable_device().
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，该漏洞源于移除模块时未正确释放irq目录，可能导致警告。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b ~ 4d6295b6d986476232332fffd08575b185f90d81 -
Linux Linux 2.6.32 -

II. Public POCs for CVE-2022-49525

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III. Intelligence Information for CVE-2022-49525

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Patches & Fixes for CVE-2022-49525 (9)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49328 8.8 HIGH mt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-49114 8.8 HIGH scsi: libfc: Fix use after free in fc_exch_abts_resp()
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49111 8.8 HIGH Bluetooth: Fix use after free in hci_send_acl
CVE-2022-49471 8.8 HIGH rtw89: cfo: check mac_id to avoid out-of-bounds
CVE-2022-49519 8.8 HIGH ath10k: skip ath10k_halt during suspend for driver state RESTARTING

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49525

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