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CVE-2026-80863

CVE-2026-80863

CVSS Skor

4.4

EPSS İhtimal

%0.2

Risk Skoru

0.0

Yayın

1 ay önce

Overview (Genel Bakış)Public Exploits (0)Newsroom (Haberler)Vulnerability Timeline
Resmî yama doğrulandı

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Envanterimdeki Etkisi

Yalnızca hesabınıza eklediğiniz kişisel ürünler değerlendirilir; kurumsal envanter burada görünmez.

Oturum kontrol ediliyor…

Zafiyet Açıklaması

DayBreach CVE AI Araştırması

CVE-2026-80863 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix OOB in free_rd_atomic_resources() free_rd_atomic_resources() iterates using qp->attr.max_dest_rd_atomic. Updating max_dest_rd_atomic before freeing the old array can make the free path walk past the old allocation and trigger a slab out-of-bounds write catched by KASAN: ================================================================== BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resource drivers/infiniband/sw/rxe/rxe_qp.c:180 [inline] BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:171 [inline] BUG: KASAN: slab-out-of-bounds in free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:163 [inline] BUG: KASAN: slab-out-of-bounds in rxe_qp_from_attr+0x1e88/0x2150 drivers/infiniband/sw/rxe/rxe_qp.c:712 Write of size 4 at addr ffff88802b8dddb8 by task syz.3.451/11063 CPU: 0 UID: 0 PID: 11063 Comm: syz.3.451 Not tainted 7.1.0 #2 PREEMPT(full) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x10e/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xf7/0x600 mm/kasan/report.c:482 kasan_report+0xe4/0x120 mm/kasan/report.c:595 free_rd_atomic_resource drivers/infiniband/sw/rxe/rxe_qp.c:180 [inline] free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:171 [inline] free_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:163 [inline] rxe_qp_from_attr+0x1e88/0x2150 drivers/infiniband/sw/rxe/rxe_qp.c:712 rxe_modify_qp+0x1e2/0x530 drivers/infiniband/sw/rxe/rxe_verbs.c:623 ib_security_modify_qp+0x223/0xfa0 drivers/infiniband/core/security.c:625 _ib_modify_qp+0x333/0xec0 drivers/infiniband/core/verbs.c:1915 modify_qp+0x13ca/0x1940 drivers/infiniband/core/uverbs_cmd.c:1932 ib_uverbs_modify_qp+0xcb/0x120 drivers/infiniband/core/uverbs_cmd.c:1958 ib_uverbs_write+0xb86/0x1030 drivers/infiniband/core/uverbs_main.c:680 vfs_write+0x2aa/0x1070 fs/read_write.c:686 ksys_write+0x1f8/0x250 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x116/0x800 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fefc75a70cd Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fefc8495018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fefc7835fa0 RCX: 00007fefc75a70cd RDX: 0000000000000078 RSI: 0000200000000240 RDI: 0000000000000007 RBP: 00007fefc764f10f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fefc7836038 R14: 00007fefc7835fa0 R15: 00007ffcf0586aa0 </TASK> Allocated by task 11063: kasan_save_stack+0x33/0x60 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5296 [inline] __kmalloc_noprof+0x32a/0x850 mm/slub.c:5308 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] alloc_rd_atomic_resources drivers/infiniband/sw/rxe/rxe_qp.c:155 [inline] rxe_qp_from_attr+0x3f8/0x2150 drivers/infiniband/sw/rxe/rxe_qp.c:714 rxe_modify_qp+0x1e2/0x530 drivers/infiniband/sw/rxe/rxe_verbs.c:623 ib_security_modify_qp+0x223/0xfa0 drivers/infiniband/core/security.c:625 _ib_modify_qp+0x333/0xec0 drivers/infiniband/core/verbs.c:1915 modify_qp+0x13ca/0x1940 drivers/infiniband/core/uverbs_cmd.c:1932 ib_uverbs_modify_qp+0xcb/0x120 drivers/infiniband/core/uverbs_cmd.c:1958 ib_uverbs_write+0xb86/0x1030 drivers/infiniband/core/uverbs_ma ---truncated---

IMPACT — Etkilenen Ürünler ve Yazılımlar

Affected Products

The following products are affected by CVE-2026-80863 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.

IDVENDORPRODUCTACTION
Total Affected Vendor: 1|Products: 1

RED HAT CSAF/VEX — Ürün Etki Kontrolü

Red Hat bu CVE için henüz bir CSAF/VEX etki kaydı yayımlamamış. Bu durum “etkilenmiyor” anlamına gelmez.

SCORING — CVSS Çoklu Kaynak Skoru

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from various sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
4.4CVSS 3.x—CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HMicrosoft MSRC

Yama ve İyileştirme Rehberi (Solution)

Solution & Remediation Advisory

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

reference

Yama veya çözüm referansı

Kaynağı aç
Etkilenen ürün ve sürümü yukarıdaki kaynak kanıtlarıyla doğrulayın.
İnternete açık servislerde erişimi kısıtlayın ve ağ segmentasyonu uygulayın.
Kanıtta belirtilen resmî güncellemeyi yalnızca eşleşen ürün ve sürüme uygulayın.
Sunucu günlüklerini ve ağ uçlarını anormal çalıştırma belirtileri için izleyin.

Public exploit ve aktif sömürü durumu

Doğrulanmış exploit istihbaratı

Bu CVE için henüz doğrulanmış public PoC, exploit repository’si veya Metasploit modülü bulunamadı.

Zafiyet Dağılımı ve Saldırı Kalıpları (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-80863 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-20: Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-80863 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Saldırı Vektörü ve Erişilebilirlik Karakteristiği

ErişimYerel erişim
YetkiYüksek
KullanıcıGerekmiyor

Resmi Kaynaklar ve Danışma Bültenleri

https://git.kernel.org/stable/c/142c8165b7974b40fa62c393653edb5c00b8b5fenvdhttps://git.kernel.org/stable/c/30b90b55201902b2b8edcdbe2315ccd4c7547002nvdhttps://git.kernel.org/stable/c/4e5f753e8c280278c09f68fe728abf846e2bdfc1nvdhttps://git.kernel.org/stable/c/9b7d66ea88ae9395e42766b94a5c717b158b940anvdhttps://git.kernel.org/stable/c/bc6e943794515d2a8417b02597a27bd377468d04nvdhttps://git.kernel.org/stable/c/bdf5deccfbf9f556a08d1d2ef52e9e48f969e53envdhttps://git.kernel.org/stable/c/d219e7a8eed3802970c3e4d243d79c70ef0a31bfnvdhttps://git.kernel.org/stable/c/de329533792a373186d79dca1ca120f8fa0afd05nvdhttps://git.kernel.org/stable/c/f5e6580a3a16a83c743ad5a7c16922854a0d8b71nvdhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgradepatch

CVSS Vektör Radar Grafiği

4.4 / 10
Attack VectorLocalComplexityLowPrivilegesHighUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack VectorLocal (Yerel)
Attack ComplexityLow (Düşük)
Privileges RequiredHigh (Yüksek Yetki)
User InteractionNone (Gerekmiyor)
Confidentiality (Gizlilik)Low (Düşük)
Integrity (Bütünlük)None (Yok)
Availability (Erişilebilirlik)High (Yüksek)

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Bu açığı API ile alın

Etkilenen ürünler, sürüm aralıkları, istismar durumu ve yama bilgisi tek istekte; ücretsiz anahtarla.

Ücretsiz anahtar alBelgeler
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-80863"