CVE-2022-50846— Linux kernel 安全漏洞
Possible ATT&CK Techniques 1AI
T1047 · Windows Management InstrumentationAffected Version Matrix 20
| ベンダー | プロダクト | Version Range | ステータス |
|---|---|---|---|
| Linux | Linux | f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 076bcd2c93e16b05c10564e299d6e5d26a766d00 | affected |
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 12b8e81b77c05c658efd9cde3585bbd65ae39b59 | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 95025a8dd0ec015872f6c16473fe04d6264e68ca | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< f59ef2a47a228e51322ad76752a55a8917c56e38 | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 63400da6cd37a9793c19bb6aed7131b58b975a04 | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 0959cc1685eb19774300d43ef25e318b457b156b | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< 0ec94795114edc7e24ec71849dce42bfa61dafa3 | affected | ||
f0bf7f61b8405224bc52fc9a3ccd167a68126e00< ba91b413983a9235792523c6b9f7ba2586c4d75d | affected | ||
| … +12 more rows | |||
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I. CVE-2022-50846の基本情報
脆弱性情報
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脆弱性タイトル
mmc: via-sdmmc: fix return value check of mmc_add_host()
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
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，该漏洞源于未检查mmc_add_host返回值，可能导致内存泄漏和空指针取消引用。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
II. CVE-2022-50846の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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CVE-2022-50846 其他参考 (9)
Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total
| CVE-2023-54265 | ipv6: Fix an uninit variable access bug in __ip6_make_skb() | |
| CVE-2023-54249 | bus: mhi: ep: Only send -ENOTCONN status if client driver is available | |
| CVE-2023-54251 | net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. | |
| CVE-2023-54253 | btrfs: set page extent mapped after read_folio in relocate_one_page | |
| CVE-2023-54252 | platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings | |
| CVE-2023-54254 | drm/ttm: Don't leak a resource on eviction error | |
| CVE-2023-54255 | sh: dma: Fix DMA channel offset calculation | |
| CVE-2023-54257 | net: macb: fix a memory corruption in extended buffer descriptor mode | |
| CVE-2023-54258 | cifs: fix potential oops in cifs_oplock_break | |
| CVE-2023-54259 | soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow | |
| CVE-2023-54260 | cifs: Fix lost destroy smbd connection when MR allocate failed | |
| CVE-2023-54261 | drm/amdkfd: Add missing gfx11 MQD manager callbacks | |
| CVE-2023-54262 | net/mlx5e: Don't clone flow post action attributes second time | |
| CVE-2023-54263 | drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP | |
| CVE-2023-54264 | fs/sysv: Null check to prevent null-ptr-deref bug | |
| CVE-2023-54266 | media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() | |
| CVE-2023-54275 | wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup | |
| CVE-2023-54276 | nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net | |
| CVE-2023-54278 | s390/vmem: split pages when debug pagealloc is enabled | |
| CVE-2023-54274 | RDMA/srpt: Add a check for valid 'mad_agent' pointer |
Showing 20 of 244 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Linux
- CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected
同じベンダー: Linux
- CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc(). - CVE-2026-53360
KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use - CVE-2026-53359
KVM: x86: Fix shadow paging use-after-free due to unexpected
V. CVE-2022-50846へのコメント
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