CVE-2026-74403— crypto: ccp - Check for page allocation failure correctly in TIO
Possible ATT&CK Techniques 2AI
T1068 · Exploitation for Privilege Escalation T1203 · Exploitation for Client ExecutionAffected Version Matrix 6
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I. Basic Information for CVE-2026-74403
Vulnerability Information
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Vulnerability Title
crypto: ccp - Check for page allocation failure correctly in TIO
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Check for page allocation failure correctly in TIO Sashiko notes: > if __snp_alloc_firmware_pages() returns NULL under memory pressure, is it > safe to pass it directly to page_address()? > > On architectures without HASHED_PAGE_VIRTUAL, page_address(NULL) might > compute a deterministic but invalid, non-zero virtual address. The > subsequent if (tio_status) check would then evaluate to true, and > sev_tsm_init_locked() would dereference the invalid pointer. Indeed, page_address(NULL) will return non-NULL garbage here. Fix this by checking the page allocation itself for NULL, not the resulting virtual address.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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基金会开源的一个操作系统内核。 Linux kernel 6.19版本存在安全漏洞，该漏洞源于对页面分配失败检查不正确，可能导致解引用无效指针。
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-2026-74403
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Patches & Fixes for CVE-2026-74403 (2)
Same Patch Batch · Linux · 2026-08-15 · 846 CVEs total
| CVE-2026-74280 | 10.0 CRITICAL | crypto: marvell/octeontx - fix DMA cleanup using wrong loop index |
| CVE-2026-74279 | 10.0 CRITICAL | crypto: cavium/cpt - fix DMA cleanup using wrong loop index |
| CVE-2026-72407 | 10.0 CRITICAL | geneve: validate inner network offset in geneve_gro_complete() |
| CVE-2026-74475 | 10.0 CRITICAL | vxlan: use neigh_ha_snapshot() in route_shortcircuit() |
| CVE-2026-72408 | 10.0 CRITICAL | geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint |
| CVE-2026-74309 | 10.0 CRITICAL | vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler |
| CVE-2026-72421 | 10.0 CRITICAL | ipv4: fib: Don't ignore error route in local/main tables. |
| CVE-2026-72493 | 9.9 CRITICAL | net: serialize netif_running() check in enqueue_to_backlog() |
| CVE-2026-72463 | 9.8 CRITICAL | xfrm: Fix dev use-after-free in xfrm async resumption |
| CVE-2026-72248 | 9.8 CRITICAL | netfilter: flowtable: support IPIP tunnel with direct xmit |
| CVE-2026-72381 | 9.8 CRITICAL | ksmbd: fix use-after-free of fp->owner.name in durable handle owner check |
| CVE-2026-72477 | 9.8 CRITICAL | fs/ntfs3: call _ntfs_bad_inode() when failing to rename |
| CVE-2026-72473 | 9.8 CRITICAL | xprtrdma: Decouple req recycling from RPC completion |
| CVE-2026-72472 | 9.8 CRITICAL | nfs: use nfsi->rwsem to protect traversal of the file lock list |
| CVE-2026-74406 | 9.8 CRITICAL | vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive(). |
| CVE-2026-72221 | 9.8 CRITICAL | sunrpc: wait for in-flight TLS handshake callback when cancel loses race |
| CVE-2026-72137 | 9.8 CRITICAL | xfrm: nat_keepalive: avoid double free on send error |
| CVE-2026-74376 | 9.8 CRITICAL | md/raid10: reset read_slot when reusing r10bio for discard |
| CVE-2026-74401 | 9.8 CRITICAL | dlm: fix add msg handle in send_queue ordered |
| CVE-2026-72234 | 9.8 CRITICAL | batman-adv: access unicast_ttvn skb->data only after skb realloc |
Showing top 20 of 846 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
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