CVE-2026-45899— ext4: drop extent cache when splitting extent fails
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 107a7bd31ac003e42c0f966aa8e5b26947de6024< 6e54f8dfee359bbd58086c883ea8cffd5312999d | affected |
107a7bd31ac003e42c0f966aa8e5b26947de6024< 337506dc652383c80839edb8d8dcdd8ff2129b4f | affected | ||
107a7bd31ac003e42c0f966aa8e5b26947de6024< dc7c9b9d03a59a7fe483574531327e650a4b4adc | affected | ||
107a7bd31ac003e42c0f966aa8e5b26947de6024< 120c6bd7ca9d3e80a968b758cbb3fbd67570f132 | affected | ||
107a7bd31ac003e42c0f966aa8e5b26947de6024< 808f3191498f300174523c54cab101e18795ae4e | affected | ||
107a7bd31ac003e42c0f966aa8e5b26947de6024< 31bf37cf53ede8145e2bc62da803d4506da92975 | affected | ||
107a7bd31ac003e42c0f966aa8e5b26947de6024< 79b592e8f1b435796cbc2722190368e3e8ffd7a1 | affected | ||
3.12 | affected | ||
| … +8 more rows | |||
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-45899
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
ext4: drop extent cache when splitting extent fails
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent status tree. So drop all of the remaining potentially stale extents if the splitting fails.
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ext4文件系统在分割区间失败时未丢弃过期的区间缓存，可能导致过期的区间条目残留。
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-2026-45899
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-45899
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-45899 (7)
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-2026-45878 | 7.8 HIGH | drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 |
| 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 |
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-2026-45899
No comments yet