CVE-2026-46105— scsi: mpt3sas: Limit NVMe request size to 2 MiB
Possible ATT&CK Techniques 1AI
T1498 · Network Denial of ServiceAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 9b8b84879d4adc506b0d3944e20b28d9f3f6994b< 45dcc815fc5539e88154315f36cbcb11d3a52fc2 | affected |
9b8b84879d4adc506b0d3944e20b28d9f3f6994b< e5f9824817c6358b9f9738bdb92dec9e4e794d3c | affected | ||
9b8b84879d4adc506b0d3944e20b28d9f3f6994b< 04631f55afc543d5431a2bdee7f6cc0f2c0debe7 | affected | ||
6.17 | affected | ||
< 6.17 | unaffected | ||
6.18.30≤ 6.18.* | unaffected | ||
7.0.7≤ 7.0.* | unaffected | ||
7.1-rc3≤ * | unaffected |
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I. Basic Information for CVE-2026-46105
Vulnerability Information
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Vulnerability Title
scsi: mpt3sas: Limit NVMe request size to 2 MiB
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Limit NVMe request size to 2 MiB The HBA firmware reports NVMe MDTS values based on the underlying drive capability. However, because the driver allocates a fixed 4K buffer for the PRP list, accommodating at most 512 entries, the driver supports a maximum I/O transfer size of 2 MiB. Limit max_hw_sectors to the smaller of the reported MDTS and the 2 MiB driver limit to prevent issuing oversized I/O that may lead to a kernel oops.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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mpt3sas驱动中NVMe请求大小限制不当，可能导致内核崩溃。以下版本受到影响：2 MiB之前版本。
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-2026-46105
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46105 (3)
Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total
| CVE-2026-46135 | 9.8 CRITICAL | nvmet-tcp: fix race between ICReq handling and queue teardown |
| CVE-2026-46137 | 9.8 CRITICAL | mptcp: pm: ADD_ADDR rtx: fix potential data-race |
| CVE-2026-46195 | 9.8 CRITICAL | smb: client: validate dacloffset before building DACL pointers |
| CVE-2026-46115 | 9.8 CRITICAL | block: add pgmap check to biovec_phys_mergeable |
| CVE-2026-46119 | 9.1 CRITICAL | libceph: Fix slab-out-of-bounds access in auth message processing |
| CVE-2026-46185 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in symlink_data() |
| CVE-2026-46155 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in smb2_compound_op() |
| CVE-2026-46113 | 8.8 HIGH | KVM: x86: Fix shadow paging use-after-free due to unexpected GFN |
| CVE-2026-46166 | 8.8 HIGH | wifi: mac80211: use safe list iteration in radar detect work |
| CVE-2026-46198 | 8.8 HIGH | batman-adv: fix integer overflow on buff_pos |
| CVE-2026-46125 | 8.8 HIGH | wifi: mac80211: remove station if connection prep fails |
| CVE-2026-46174 | 8.8 HIGH | x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache |
| CVE-2026-46152 | 8.8 HIGH | wifi: mac80211: drop stray 'static' from fast-RX rx_result |
| CVE-2026-46238 | 8.8 HIGH | batman-adv: stop caching unowned originator pointers in BAT IV |
| CVE-2026-46212 | 8.8 HIGH | batman-adv: bla: prevent use-after-free when deleting claims |
| CVE-2026-46138 | 8.1 HIGH | Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt |
| CVE-2026-46232 | 8.1 HIGH | HID: playstation: Clamp num_touch_reports |
| CVE-2026-46209 | 7.8 HIGH | drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() |
| CVE-2026-46227 | 7.8 HIGH | sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL |
| CVE-2026-46157 | 7.8 HIGH | ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger |
Showing top 20 of 138 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- 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 - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT
Same vendor: Linux
- 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 - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT
V. Comments for CVE-2026-46105
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