CVE-2026-46268Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmem_alloc_mmap() it uses "VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))" to assert the initial page refcount should not be zero and the following will be reported when CONFIG_DEBUG_VM is enabled: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x380400000 flags: 0x20000000002000(reserved|node=0|zone=4) raw: 0020000000002000 ff1100015e3ab440 0000000000000000 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: VM_WARN_ON_ONCE_PAGE(!page_ref_count(page)) ------------[ cut here ]------------ WARNING: CPU: 5 PID: 449 at drivers/pci/p2pdma.c:240 p2pmem_alloc_mmap+0x83a/0xa60 Fix by using "page_ref_count(page)" as the assertion condition.

linux CVEs Back to dashboard

0.5/ 10 priority

Sources & remediation

Patch / fix

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

linux_kernel

Threat summary

Patch or workaround signal is available
3 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 2 signals
Disclosure: 1 classified signal
Peaked at 2 mentions on most recent observed day (2026-06-04)
3 total mentions across 2 days

Affected systems

Vendors

linux

Products

linux_kernel

Deep dive

Activity timeline3 mentions / 2d

Signal classification2 categories

Patch

266.7%

Disclosure

133.3%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-06-03	1	Disclosure1
2026-06-04	2	Patch2

Full discourse3 posts

Infoflowcloud@infoflowcloud136d
Patch
🚨*CVE* CVE-2026-46268 In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition Commit b7e282378773 has already changed th… https://www.cve.org/CVERecord?id=CVE-2026-46268 ----- Traducción: CVE-2026-46268 En … http://infoflow.cloud`
Post summary
The CVE-2026-46268 has been fixed in the Linux kernel with a commit reference, providing technical details of the vulnerability but no PoC, exploit, or evidence of active exploitation.
0000037
79 followersView on X
CVE@CVEnew136d
Patch
CVE-2026-46268 In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition Commit b7e282378773 has already changed th… https://www.cve.org/CVERecord?id=CVE-2026-46268
Post summary
The text announces that CVE-2026-46268 has been fixed in the Linux kernel via a specific commit addressing a warning condition in PCI/P2PDMA.
00000265
57.6K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds137d
Disclosure
CVE-2026-46268 Linux Kernel PCI/P2PDMA https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-46268 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3
Post summary
The text provides a brief announcement of CVE‑2026‑46268 affecting Linux Kernel PCI/P2PDMA, linking to a vulnerability details page and a notification, but does not include PoC, exploitation, patches, or technical specifics.
0000036
4.0K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	linux	linux_kernel	-	-	-

Explore more

Back to dashboard linux CVEs linux_kernel vulnerabilities