ip6mr: Fix skb_under_panic in ip6mr_cache_report() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.19 % · centile 9 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skb_under_panic in ip6mr_cache_report() skbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:192! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:skb_panic+0x152/0x1d0 Call Trace: <TASK> skb_push+0xc4/0xe0 ip6mr_cache_report+0xd69/0x19b0 reg_vif_xmit+0x406/0x690 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 vlan_dev_hard_start_xmit+0x3ab/0x5c0 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 neigh_connected_output+0x3ed/0x570 ip6_finish_output2+0x5b5/0x1950 ip6_finish_output+0x693/0x11c0 ip6_output+0x24b/0x880 NF_HOOK.constprop.0+0xfd/0x530 ndisc_send_skb+0x9db/0x1400 ndisc_send_rs+0x12a/0x6c0 addrconf_dad_completed+0x3c9/0xea0 addrconf_dad_work+0x849/0x1420 process_one_work+0xa22/0x16e0 worker_thread+0x679/0x10c0 ret_from_fork+0x28/0x60 ret_from_fork_asm+0x11/0x20 When setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit(). reg_vif_xmit() ip6mr_cache_report() skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4 And skb_push declared as: void *skb_push(struct sk_buff *skb, unsigned int len); skb->data -= len; //0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850 skb->data is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.
Références
- https://git.kernel.org/stable/c/a96d74d1076c82a4cef02c150d9996b21354c78d
- https://git.kernel.org/stable/c/8382e7ed2d63e6c2daf6881fa091526dc6c879cd
- https://git.kernel.org/stable/c/0438e60a00d4e335b3c36397dbf26c74b5d13ef0
- https://git.kernel.org/stable/c/1683124129a4263dd5bce2475bab110e95fa0346
- https://git.kernel.org/stable/c/1bb54a21f4d9b88442f8c3307c780e2db64417e4
- https://git.kernel.org/stable/c/691a09eecad97e745b9aa0e3918db46d020bdacb
- https://git.kernel.org/stable/c/3326c711f18d18fe6e1f5d83d3a7eab07e5a1560
- https://git.kernel.org/stable/c/30e0191b16e8a58e4620fa3e2839ddc7b9d4281c
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2023-59961
- GCVE · GCVE-0-2023-53365
Avis du CERT-FR
- CERTFR-2026-AVI-0017 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1132 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1105 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1073 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1049 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1047 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.26 < 4.14.322cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.291cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.253cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.190cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.126cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.45cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.4.10cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < a96d74d1076c82a4cef02c150d9996b21354c78d ; affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < 8382e7ed2d63e6c2daf6881fa091526dc6c879cd ; affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < 0438e60a00d4e335b3c36397dbf26c74b5d13ef0 ; affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < 1683124129a4263dd5bce2475bab110e95fa0346 ; affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < 1bb54a21f4d9b88442f8c3307c780e2db64417e4 ; affected 14fb64e1f449ef6666f1c3a3fa4e13aec669b98d < 691a09eecad97e745b9aa0e3918db46d020bdacb |
| Linux · Linux | affected 2.6.26 ; unaffected 0 < 2.6.26 ; unaffected 4.14.322 ≤ 4.14.* ; unaffected 4.19.291 ≤ 4.19.* ; unaffected 5.4.253 ≤ 5.4.* ; unaffected 5.10.190 ≤ 5.10.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |