CVE-2022-49821— mISDN: fix possible memory leak in mISDN_dsp_element_register()
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1fa5ae857bb14f6046205171d98506d8112dd74e< bbd53d05c4c892080ef3b617eff4f57903acecb9 | affected |
1fa5ae857bb14f6046205171d98506d8112dd74e< b119bedbefb7dd9ed8bf8cb9f1056504250d610e | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< 727ed7d28348c026c7ef4d852f3d0e5054d376e8 | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< 0f2c681900a01e3f23789bca26d88268c3d5b51d | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< 083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47 | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< 7a05e3929668c8cfef495c69752a9e91fac4878f | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< d4b8394725079670be309f9a35ad88a8cbbaaefd | affected | ||
1fa5ae857bb14f6046205171d98506d8112dd74e< 98a2ac1ca8fd6eca6867726fe238d06e75eb1acd | affected | ||
| … +10 more rows | |||
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2022-49821
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
mISDN: fix possible memory leak in mISDN_dsp_element_register()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.
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mISDN_dsp_element_register中未正确释放设备引用，可能导致内存泄漏。
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-2022-49821
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2022-49821
请登录查看更多情报信息。
Patches & Fixes for CVE-2022-49821 (7)
Other References for CVE-2022-49821 (1)
Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total
| CVE-2022-49854 | mctp: Fix an error handling path in mctp_init() | |
| CVE-2022-49837 | bpf: Fix memory leaks in __check_func_call | |
| CVE-2022-49838 | sctp: clear out_curr if all frag chunks of current msg are pruned | |
| CVE-2022-49840 | bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() | |
| CVE-2022-49839 | scsi: scsi_transport_sas: Fix error handling in sas_phy_add() | |
| CVE-2022-49841 | serial: imx: Add missing .thaw_noirq hook | |
| CVE-2022-49842 | ASoC: core: Fix use-after-free in snd_soc_exit() | |
| CVE-2022-49844 | can: dev: fix skb drop check | |
| CVE-2022-49845 | can: j1939: j1939_send_one(): fix missing CAN header initialization | |
| CVE-2022-49846 | udf: Fix a slab-out-of-bounds write bug in udf_find_entry() | |
| CVE-2022-49847 | net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload | |
| CVE-2022-49849 | btrfs: fix match incorrectly in dev_args_match_device | |
| CVE-2022-49848 | phy: qcom-qmp-combo: fix NULL-deref on runtime resume | |
| CVE-2022-49850 | nilfs2: fix deadlock in nilfs_count_free_blocks() | |
| CVE-2022-49851 | riscv: fix reserved memory setup | |
| CVE-2022-49852 | riscv: process: fix kernel info leakage | |
| CVE-2022-49862 | tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header | |
| CVE-2022-49864 | drm/amdkfd: Fix NULL pointer dereference in svm_migrate_to_ram() | |
| CVE-2022-49865 | ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network | |
| CVE-2022-49863 | can: af_can: fix NULL pointer dereference in can_rx_register() |
Showing top 20 of 245 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs - CVE-2026-52906
9p: fix access mode flags being ORed instead of replaced - CVE-2026-52905
mm/damon/core: disallow non-power of two min_region_sz on da - CVE-2026-52904
drm/nouveau: fix nvkm_device leak on aperture removal failur
Same vendor: Linux
- CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs - CVE-2026-52906
9p: fix access mode flags being ORed instead of replaced - CVE-2026-52905
mm/damon/core: disallow non-power of two min_region_sz on da - CVE-2026-52904
drm/nouveau: fix nvkm_device leak on aperture removal failur
V. Comments for CVE-2022-49821
No comments yet