CVE-2026-72413— sctp: fix err_chunk memory leaks in INIT handling
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 6
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I. Basic Information for CVE-2026-72413
Vulnerability Information
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Vulnerability Title
sctp: fix err_chunk memory leaks in INIT handling
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: sctp: fix err_chunk memory leaks in INIT handling When sctp_verify_init() encounters unrecognized parameters, it allocates an err_chunk to report them. However, this chunk is leaked in several code paths: 1. In sctp_sf_do_5_1B_init(), if security_sctp_assoc_request() fails after sctp_verify_init() has populated err_chunk, the function returns immediately without freeing it. 2. In sctp_sf_do_unexpected_init(), the same leak occurs on the security_sctp_assoc_request() failure path. 3. In sctp_sf_do_unexpected_init(), on the success path after copying unrecognized parameters to the INIT-ACK, the function returns without freeing err_chunk, unlike sctp_sf_do_5_1B_init() which properly frees it. Fix all three leaks by adding sctp_chunk_free(err_chunk) calls before returning in the error paths and on the success path in sctp_sf_do_unexpected_init().
Source: CVE Program / CVE List V5
CVSS Information
N/A
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存在安全漏洞，该漏洞源于sctp_verify_init()在处理无法识别的参数时分配err_chunk后未正确释放，可能导致内存泄漏。
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-2026-72413
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Patches & Fixes for CVE-2026-72413 (2)
Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total
| CVE-2026-74475 | 10.0 CRITICAL | vxlan: use neigh_ha_snapshot() in route_shortcircuit() |
| 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-2026-74309 | 10.0 CRITICAL | vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler |
| CVE-2026-72408 | 10.0 CRITICAL | geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint |
| 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-2026-72222 | 9.8 CRITICAL | sunrpc: pin svc_xprt across the asynchronous TLS handshake callback |
| CVE-2026-74401 | 9.8 CRITICAL | dlm: fix add msg handle in send_queue ordered |
| 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-2026-72130 | 9.8 CRITICAL | nvmet-auth: reject short AUTH_RECEIVE buffers |
Showing top 20 of 845 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74583
net/sched: cls_route: fix fastmap use-after-free on filter - CVE-2026-74581
net: ipv6: clear suppressed fib6 rule result - CVE-2026-74582
packet: use consistent hard_header_len in non-ring send path - CVE-2026-74580
vhost: reset the vring metadata cache on vring reconfigurati - CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off
Same vendor: Linux
- CVE-2026-74583
net/sched: cls_route: fix fastmap use-after-free on filter - CVE-2026-74581
net: ipv6: clear suppressed fib6 rule result - CVE-2026-74582
packet: use consistent hard_header_len in non-ring send path - CVE-2026-74580
vhost: reset the vring metadata cache on vring reconfigurati - CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off
V. Comments for CVE-2026-72413
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