CVE-2026-45978— staging: greybus: lights: avoid NULL deref
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2870b52bae4c81823ffcb3ed2b0626fb39d64f48< a118724d7641b832fa14323e2733e28ae4834552 | affected |
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< 3cbe694d235d96f628ec7dc6ae4d8bdddb768699 | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< ba5022162da63059bae36c4fd84d7031f582c71f | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< 65f2c608096d766540953d9b170d216aa3b5eb95 | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< 01b91cb3e748032fd96bbe0043812b426a52f091 | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< 06162d85f830582da6e9e5fcf9c9504d6da9ae0b | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< da46264a7016034a5bbbad034c012ef218b7d0af | affected | ||
2870b52bae4c81823ffcb3ed2b0626fb39d64f48< efcffd9a6ad8d190651498d5eda53bfc7cf683a7 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-45978
Vulnerability Information
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Vulnerability Title
staging: greybus: lights: avoid NULL deref
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: greybus: lights: avoid NULL deref gb_lights_light_config() stores channel_count before allocating the channels array. If kcalloc() fails, gb_lights_release() iterates the non-zero count and dereferences light->channels, which is NULL. Allocate channels first and only then publish channels_count so the cleanup path can't walk a NULL pointer.
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，该漏洞源于在分配通道数组前存储channel_count，可能导致空指针解引用。
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-2026-45978
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-45978 (8)
Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total
| CVE-2026-46039 | 9.8 CRITICAL | rxgk: Fix potential integer overflow in length check |
| CVE-2026-45898 | 9.8 CRITICAL | RDMA/iwcm: Fix workqueue list corruption by removing work_list |
| CVE-2026-45988 | 9.8 CRITICAL | rxrpc: Fix re-decryption of RESPONSE packets |
| CVE-2026-45972 | 9.8 CRITICAL | smb: client: fix potential UAF and double free in smb2_open_file() |
| CVE-2026-46043 | 9.1 CRITICAL | RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv |
| CVE-2026-46056 | 8.8 HIGH | Bluetooth: hci_event: fix potential UAF in SSP passkey handlers |
| CVE-2026-45945 | 8.8 HIGH | iommu/vt-d: Fix race condition during PASID entry replacement |
| CVE-2026-45843 | 8.2 HIGH | slip: bound decode() reads against the compressed packet length |
| CVE-2026-46037 | 8.2 HIGH | ipv4: icmp: validate reply type before using icmp_pointers |
| CVE-2026-46010 | 8.1 HIGH | rxrpc: Fix error handling in rxgk_extract_token() |
| CVE-2026-46099 | 8.1 HIGH | net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels |
| CVE-2026-46076 | 7.9 HIGH | KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 |
| CVE-2026-45894 | 7.8 HIGH | iommu/vt-d: Clear Present bit before tearing down PASID entry |
| CVE-2026-45959 | 7.8 HIGH | crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree |
| CVE-2026-46011 | 7.8 HIGH | media: mtk-jpeg: fix use-after-free in release path due to uncancelled work |
| CVE-2026-46015 | 7.8 HIGH | tcp: call sk_data_ready() after listener migration |
| CVE-2026-45852 | 7.8 HIGH | RDMA/rxe: Fix double free in rxe_srq_from_init |
| CVE-2026-46058 | 7.8 HIGH | media: amphion: Fix race between m2m job_abort and device_run |
| CVE-2026-45861 | 7.8 HIGH | gfs2: Fix slab-use-after-free in qd_put |
| CVE-2026-46053 | 7.8 HIGH | net: rds: fix MR cleanup on copy error |
Showing top 20 of 276 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
Same vendor: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
V. Comments for CVE-2026-45978
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