جزئیات آسیب‌پذیری
CVE-2026-45998
rxrpc: Fix potential UAF after skb_unshare() failure
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skb_unshare() failure If skb_unshare() fails to unshare a packet due to allocation failure in rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread()) will be NULL'd out. This will likely cause the call to trace_rxrpc_rx_done() to oops. Fix this by moving the unsharing down to where rxrpc_input_call_event() calls rxrpc_input_call_packet(). There are a number of places prior to that where we ignore DATA packets for a variety of reasons (such as the call already being complete) for which an unshare is then avoided. And with that, rxrpc_input_packet() doesn't need to take a pointer to the pointer to the packet, so change that to just a pointer.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 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 | 6.2 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 ≤ v < bf20f46d94f1db38e6ffc0ca204a5fe0de01b495 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 ≤ v < 996b0487b3cdda4c91811dbb1c9564626bc840bd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 ≤ v < 8fde6296c4d4da2be7ab761305ab7f232b94eefd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 ≤ v < 1f2740150f904bfa60e4bad74d65add3ccb5e7f8 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 ≤ v < e3bf143b1e98fb3d6d9e6825bcd683974d478e8c | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 9 | همه | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Enterprise Linux 9 | همه | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱۴- https://git.kernel.org/stable/c/e3bf143b1e98fb3d6d9e6825bcd683974d478e8c
- https://git.kernel.org/stable/c/bf20f46d94f1db38e6ffc0ca204a5fe0de01b495
- https://git.kernel.org/stable/c/996b0487b3cdda4c91811dbb1c9564626bc840bd
- https://git.kernel.org/stable/c/8fde6296c4d4da2be7ab761305ab7f232b94eefd
- https://git.kernel.org/stable/c/1f2740150f904bfa60e4bad74d65add3ccb5e7f8
- https://access.redhat.com/security/cve/CVE-2026-45998 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2482024 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45998.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:55445 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:34911 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:67723 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65712 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:65708 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:67721 vendor-advisoryx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۳/۰۶
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۸/۱۵
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- جزئی
ضعف‌ها (CWE)
- CWE-825Expired Pointer Dereference