`CVE-2024-26633`

Affected software	2 products, listed below
Severity	5.5 Medium CVSS 3.1
Published	18 Mar 2024
Updated	17 Jun 2026

Description

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim() syzbot pointed out [1] that NEXTHDR_FRAGMENT handling is broken. Reading frag_off can only be done if we pulled enough bytes to skb->head. Currently we might access garbage. [1] BUG: KMSAN: uninit-value in ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ip6_tnl_parse_tlv_enc_lim+0x94f/0xbb0 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline] ip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432 __netdev_start_xmit include/linux/netdevice.h:4940 [inline] netdev_start_xmit include/linux/netdevice.h:4954 [inline] xmit_one net/core/dev.c:3548 [inline] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [inline] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h:542 [inline] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [inline] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output.c:1952 [inline] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920 inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc_node_track_caller+0x118/0x3c0 mm/slab_common.c:1027 kmalloc_reserve+0x249/0x4a0 net/core/skbuff.c:582 pskb_expand_head+0x226/0x1a00 net/core/skbuff.c:2098 __pskb_pull_tail+0x13b/0x2310 net/core/skbuff.c:2655 pskb_may_pull_reason include/linux/skbuff.h:2673 [inline] pskb_may_pull include/linux/skbuff.h:2681 [inline] ip6_tnl_parse_tlv_enc_lim+0x901/0xbb0 net/ipv6/ip6_tunnel.c:408 ipxip6_tnl_xmit net/ipv6/ip6_tunnel.c:1326 [inline] ip6_tnl_start_xmit+0xab2/0x1a70 net/ipv6/ip6_tunnel.c:1432 __netdev_start_xmit include/linux/netdevice.h:4940 [inline] netdev_start_xmit include/linux/netdevice.h:4954 [inline] xmit_one net/core/dev.c:3548 [inline] dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564 __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349 dev_queue_xmit include/linux/netdevice.h:3134 [inline] neigh_connected_output+0x569/0x660 net/core/neighbour.c:1592 neigh_output include/net/neighbour.h:542 [inline] ip6_finish_output2+0x23a9/0x2b30 net/ipv6/ip6_output.c:137 ip6_finish_output+0x855/0x12b0 net/ipv6/ip6_output.c:222 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip6_output+0x323/0x610 net/ipv6/ip6_output.c:243 dst_output include/net/dst.h:451 [inline] ip6_local_out+0xe9/0x140 net/ipv6/output_core.c:155 ip6_send_skb net/ipv6/ip6_output.c:1952 [inline] ip6_push_pending_frames+0x1f9/0x560 net/ipv6/ip6_output.c:1972 rawv6_push_pending_frames+0xbe8/0xdf0 net/ipv6/raw.c:582 rawv6_sendmsg+0x2b66/0x2e70 net/ipv6/raw.c:920 inet_sendmsg+0x105/0x190 net/ipv4/af_inet.c:847 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendms ---truncated---

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 2 years ago.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC none indexed
EPSS 0.33% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review automated Upstream data
Record active

Decided by	The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding	This CVE names only products the Waratek agent cannot be installed into (netapp/ontap_tools). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

Decided by

The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

Finding

This CVE names only products the Waratek agent cannot be installed into (netapp/ontap_tools). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

Affected software and releases

Products and versions

20 products, 26 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	debian	debian linux	generic	10.0
nvd	linux	linux kernel	generic	≥ 4.10 and ＜ 4.19.306 · ≥ 4.20 and ＜ 5.4.268 · ≥ 5.5 and ＜ 5.10.209 · ≥ 5.11 and ＜ 5.15.148 · ≥ 5.16 and ＜ 6.1.75 · ≥ 6.2 and ＜ 6.6.14 · ≥ 6.7 and ＜ 6.7.2
nvd	netapp	9500 firmware	generic	any version
nvd	netapp	a150 firmware	generic	any version
nvd	netapp	a1k firmware	generic	any version
nvd	netapp	a220 firmware	generic	any version
nvd	netapp	a70 firmware	generic	any version
nvd	netapp	a800 firmware	generic	any version
nvd	netapp	a90 firmware	generic	any version
nvd	netapp	a900 firmware	generic	any version
nvd	netapp	c190 firmware	generic	any version
nvd	netapp	c800 firmware	generic	any version
nvd	netapp	fas2720 firmware	generic	any version
nvd	netapp	fas2750 firmware	generic	any version
nvd	netapp	fas2820 firmware	generic	any version
nvd	netapp	h610c firmware	generic	any version
nvd	netapp	h610s firmware	generic	any version
nvd	netapp	h615c firmware	generic	any version
nvd	netapp	ontap select deploy administration utility	generic	any version
nvd	netapp	ontap tools	generic	9

Source

Vendor

Product

Scheme

Affected versions

nvd

debian

debian linux

generic

10.0

nvd

linux

linux kernel

generic

≥ 4.10 and ＜ 4.19.306 · ≥ 4.20 and ＜ 5.4.268 · ≥ 5.5 and ＜ 5.10.209 · ≥ 5.11 and ＜ 5.15.148 · ≥ 5.16 and ＜ 6.1.75 · ≥ 6.2 and ＜ 6.6.14 · ≥ 6.7 and ＜ 6.7.2

nvd

netapp

9500 firmware

generic

any version

nvd

netapp

a150 firmware

generic

any version

nvd

netapp

a1k firmware

generic

any version

nvd

netapp

a220 firmware

generic

any version

nvd

netapp

a70 firmware

generic

any version

nvd

netapp

a800 firmware

generic

any version

nvd

netapp

a90 firmware

generic

any version

nvd

netapp

a900 firmware

generic

any version

nvd

netapp

c190 firmware

generic

any version

nvd

netapp

c800 firmware

generic

any version

nvd

netapp

fas2720 firmware

generic

any version

nvd

netapp

fas2750 firmware

generic

any version

nvd

netapp

fas2820 firmware

generic

any version

nvd

netapp

h610c firmware

generic

any version

nvd

netapp

h610s firmware

generic

any version

nvd

netapp

h615c firmware

generic

any version

nvd

netapp

ontap select deploy administration utility

generic

any version

nvd

netapp

ontap tools

generic

References

URL	Tags
https://git.kernel.org/stable/c/135414f300c5db995e2a2f3bf0f455de9d014aee	Patch
https://git.kernel.org/stable/c/3f15ba3dc14e6ee002ea01b4faddc3d49200377c	Patch
https://git.kernel.org/stable/c/4329426cf6b8e22b798db2331c7ef1dd2a9c748d	Patch
https://git.kernel.org/stable/c/62a1fedeb14c7ac0947ef33fadbabd35ed2400a2	Patch
https://git.kernel.org/stable/c/687c5d52fe53e602e76826dbd4d7af412747e183	Patch
https://git.kernel.org/stable/c/ba8d904c274268b18ef3dc11d3ca7b24a96cb087	Patch
https://git.kernel.org/stable/c/d375b98e0248980681e5e56b712026174d617198	Patch
https://git.kernel.org/stable/c/da23bd709b46168f7dfc36055801011222b076cd	Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html	Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html	Mailing List, Third Party Advisory

URL

Timeline

Published	2024-03-18	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2024-03-18

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (15 of 24 rules ran)

15 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification no match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side no match Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven no match An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package no match An affected Maven artifact named by the CNA itself

11 known-cpe-product no match An NVD CPE naming a product ARMR tracks

12 cna-cpe-product no match A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family no match A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product no match A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product decided it matched Outside Waratek scope Named products cannot host a Java agent: netapp/ontap_tools

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

Products the scope rules checked

The products this CVE's record names, and whether VRT tracks each one. The scope rules decided on these.

Vendor Product Tracked CPE Source

linux linux_kernel not tracked cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

debian debian_linux not tracked cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

netapp ontap_select_deploy_administration_utility not tracked cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*

netapp ontap_tools not tracked cpe:2.3:a:netapp:ontap_tools:9:*:*:*:*:vmware_vsphere:*:*

netapp a1k_firmware not tracked cpe:2.3:o:netapp:a1k_firmware:-:*:*:*:*:*:*:*

netapp a70_firmware not tracked cpe:2.3:o:netapp:a70_firmware:-:*:*:*:*:*:*:*

netapp a90_firmware not tracked cpe:2.3:o:netapp:a90_firmware:-:*:*:*:*:*:*:*

netapp a800_firmware not tracked cpe:2.3:o:netapp:a800_firmware:-:*:*:*:*:*:*:*

netapp c800_firmware not tracked cpe:2.3:o:netapp:c800_firmware:-:*:*:*:*:*:*:*

netapp a900_firmware not tracked cpe:2.3:o:netapp:a900_firmware:-:*:*:*:*:*:*:*

netapp 9500_firmware not tracked cpe:2.3:o:netapp:9500_firmware:-:*:*:*:*:*:*:*

netapp c190_firmware not tracked cpe:2.3:o:netapp:c190_firmware:-:*:*:*:*:*:*:*

netapp a150_firmware not tracked cpe:2.3:o:netapp:a150_firmware:-:*:*:*:*:*:*:*

netapp a220_firmware not tracked cpe:2.3:o:netapp:a220_firmware:-:*:*:*:*:*:*:*

netapp fas2720_firmware not tracked cpe:2.3:o:netapp:fas2720_firmware:-:*:*:*:*:*:*:*

netapp fas2750_firmware not tracked cpe:2.3:o:netapp:fas2750_firmware:-:*:*:*:*:*:*:*

netapp fas2820_firmware not tracked cpe:2.3:o:netapp:fas2820_firmware:-:*:*:*:*:*:*:*

netapp h610c_firmware not tracked cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*

netapp h610s_firmware not tracked cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*

netapp h615c_firmware not tracked cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*

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