CVE-2022-49273— rtc: pl031: fix rtc features null pointer dereference
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d9b0dd54a1943f47a381a474f8ea2c94466110c0< cd2722e411e8ab7e5ae41102f6925fa13dffdac5 | affected |
d9b0dd54a1943f47a381a474f8ea2c94466110c0< d274ce4a3dfd0b9a292667535578359b865765cb | affected | ||
d9b0dd54a1943f47a381a474f8ea2c94466110c0< 1b915703964f7e636961df04c540261dc55c6c70 | affected | ||
d9b0dd54a1943f47a381a474f8ea2c94466110c0< ea6af39f3da50c86367a71eb3cc674ade3ed244c | affected | ||
5.12 | affected | ||
< 5.12 | unaffected | ||
5.15.33≤ 5.15.* | unaffected | ||
5.16.19≤ 5.16.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2022-49273
Vulnerability Information
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Vulnerability Title
rtc: pl031: fix rtc features null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.
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pl031 rtc features 空指针取消引用。
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-2022-49273
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49273 (4)
Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total
| CVE-2022-49149 | 9.8 CRITICAL | rxrpc: Fix call timer start racing with call destruction |
| CVE-2022-49280 | 9.8 CRITICAL | NFSD: prevent underflow in nfssvc_decode_writeargs() |
| CVE-2022-49561 | 9.8 CRITICAL | netfilter: conntrack: re-fetch conntrack after insertion |
| CVE-2022-49407 | 9.8 CRITICAL | dlm: fix plock invalid read |
| CVE-2022-49094 | 9.8 CRITICAL | net/tls: fix slab-out-of-bounds bug in decrypt_internal |
| CVE-2022-49362 | 9.8 CRITICAL | NFSD: Fix potential use-after-free in nfsd_file_put() |
| CVE-2022-49093 | 9.8 CRITICAL | skbuff: fix coalescing for page_pool fragment recycling |
| CVE-2022-49194 | 9.8 CRITICAL | net: bcmgenet: Use stronger register read/writes to assure ordering |
| CVE-2022-49356 | 9.8 CRITICAL | SUNRPC: Trap RDMA segment overflows |
| CVE-2022-49418 | 9.8 CRITICAL | NFSv4: Fix free of uninitialized nfs4_label on referral lookup. |
| CVE-2022-49201 | 9.8 CRITICAL | ibmvnic: fix race between xmit and reset |
| CVE-2022-49260 | 9.8 CRITICAL | crypto: hisilicon/sec - fix the aead software fallback for engine |
| CVE-2022-49058 | 9.1 CRITICAL | cifs: potential buffer overflow in handling symlinks |
| CVE-2022-49519 | 8.8 HIGH | ath10k: skip ath10k_halt during suspend for driver state RESTARTING |
| CVE-2022-49328 | 8.8 HIGH | mt76: fix use-after-free by removing a non-RCU wcid pointer |
| CVE-2022-49238 | 8.8 HIGH | ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855 |
| CVE-2022-49138 | 8.8 HIGH | Bluetooth: hci_event: Ignore multiple conn complete events |
| CVE-2022-49479 | 8.8 HIGH | mt76: fix tx status related use-after-free race on station removal |
| CVE-2022-49114 | 8.8 HIGH | scsi: libfc: Fix use after free in fc_exch_abts_resp() |
| CVE-2022-49111 | 8.8 HIGH | Bluetooth: Fix use after free in hci_send_acl |
Showing top 20 of 706 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2022-49273
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