جزئیات آسیب‌پذیری
CVE-2026-45852
RDMA/rxe: Fix double free in rxe_srq_from_init
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix double free in rxe_srq_from_init In rxe_srq_from_init(), the queue pointer 'q' is assigned to 'srq->rq.queue' before copying the SRQ number to user space. If copy_to_user() fails, the function calls rxe_queue_cleanup() to free the queue, but leaves the now-invalid pointer in 'srq->rq.queue'. The caller of rxe_srq_from_init() (rxe_create_srq) eventually calls rxe_srq_cleanup() upon receiving the error, which triggers a second rxe_queue_cleanup() on the same memory, leading to a double free. The call trace looks like this: kmem_cache_free+0x.../0x... rxe_queue_cleanup+0x1a/0x30 [rdma_rxe] rxe_srq_cleanup+0x42/0x60 [rdma_rxe] rxe_elem_release+0x31/0x70 [rdma_rxe] rxe_create_srq+0x12b/0x1a0 [rdma_rxe] ib_create_srq_user+0x9a/0x150 [ib_core] Fix this by moving 'srq->rq.queue = q' after copy_to_user.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 7.0بالا | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Linux | Linux | 350703fae672d4d649c3562c199eab5ec9dc7c79 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.20 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.19.86 ≤ v < 4.20 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < 26793db60925df1e88a29466813d586cbc190b8c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < ce6f8e007682f378279d4cf83b240f12d52c723b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < 5c07aef09a121a4cd622a71eb0753a9e135c84a8 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < 26a9cfe12f4ffdeaa136f252478986fa5f397ddc | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < 0beefd0e15d962f497aad750b2d5e9c3570b66d1 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < b98ab5494dbd48652561aa0b9c32f10500220745 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < d493e0bfc748a520c349d6c8791b262aa5ad2e4e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | aae0484e15f062ad2c2502e68e15dfb8b8f84608 ≤ v < 9abff51163aa1bc275ec356f74fe976291860a7f | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 9 | همه | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۲۱- https://git.kernel.org/stable/c/b98ab5494dbd48652561aa0b9c32f10500220745
- https://git.kernel.org/stable/c/d493e0bfc748a520c349d6c8791b262aa5ad2e4e
- https://git.kernel.org/stable/c/9abff51163aa1bc275ec356f74fe976291860a7f
- https://git.kernel.org/stable/c/26793db60925df1e88a29466813d586cbc190b8c
- https://git.kernel.org/stable/c/ce6f8e007682f378279d4cf83b240f12d52c723b
- https://git.kernel.org/stable/c/5c07aef09a121a4cd622a71eb0753a9e135c84a8
- https://git.kernel.org/stable/c/26a9cfe12f4ffdeaa136f252478986fa5f397ddc
- https://git.kernel.org/stable/c/0beefd0e15d962f497aad750b2d5e9c3570b66d1
- https://access.redhat.com/security/cve/CVE-2026-45852 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2482166 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45852.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:35844 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:41236 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27713 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:34094 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25217 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25121 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:35896 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:33899 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:35863 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:25120 vendor-advisoryx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۳/۰۶
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۲۷
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- کامل
ضعف‌ها (CWE)
- CWE-1341Multiple Releases of Same Resource or Handle
- CWE-415Double Free