CVE-2022-49525: media: cx25821: Fix the warning when removing the module
Vulnerability summary
CVE-2022-49525 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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().
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu112 products
- linuxAll versions (No fix recorded) | < 4.15.0-192.203 | < 5.4.0-126.142 | < 5.15.0-47.51
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1140.151 | < 5.4.0-1085.92 | < 5.15.0-1019.23
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 4d6295b6d986476232332fffd08575b185f90d81 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 5beb85ff7d005ddb7bf604a4f2dc76f01b84b318 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 258639bc55a586ee6df92d89786ccf1c71546d70 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 222292930c8ecc3516e03ec1f9fa8448be7ff496 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 3f94169affa33c9db4a439d88f09cb2ed3a33332 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 1f0fc1dfb5fdd456657519a97fab83691b96c6a0 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 9d92291698e5cc35a2b8a1106a01ddd7d60ade2d | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 005fd553f5f10fe8618d92f94ad10f9051eac331 | ≥ 02b20b0b4cde011f7ad6b5363fb88b93f7ad4e5b, < 2203436a4d24302871617373a7eb21bc17e38762 | 2.6.32
- linux_kernel< 4.9.318 | ≥ 4.10, < 4.14.283 | ≥ 4.15, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.121 | ≥ 5.11, < 5.15.46 | ≥ 5.16, < 5.17.14 | ≥ 5.18, < 5.18.3
Debian1 product
- linux< 5.18.5-1
3 vendors · 115 products
