CVE-2026-98270drm/amdgpu: check ras and obj before dereference
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: check ras and obj before dereference nbio_v7_9_handle_ras_controller_intr_no_bifring() dereferences ras and obj without checking either for NULL. Both amdgpu_ras_get_context() and amdgpu_ras_find_obj() can return NULL, e.g. during the window between adev->nbio.ras being set (early in amdgpu_ras_init(), by design, to enable the fatal-error interrupt as soon as possible) and the PCIE_BIF ras object actually being created in RAS late_init. Any interrupt in that window crashes in hard-IRQ context. This is analogous to commit d190b459b2a4 ("drm/amdgpu: the warning dereferencing obj for nbio_v7_4"), which fixed the same issue in the nbio_v7_4 handler. Found by Linux Verification Center (linuxtesting.org) with SVACE. (cherry picked from commit c7071767a50a32ed727cf800ac84372429e3b4b3)
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7692e1ee2446fd1940b5caa6e09779504a58881a before b7c7f07a40037514f8e890aa00f8d7b196d680cf; from 7692e1ee2446fd1940b5caa6e09779504a58881a before fc5f845a291fc8175e6857cd6ad042818da192e8; from 7692e1ee2446fd1940b5caa6e09779504a58881a before 37583946d8751f8e285c467d770ac0b609b82a23; 7692e1ee2446fd1940b5caa6e09779504a58881a builds before 315c22712715491f0dfafdaf2c2b437540e68702; 7692e1ee2446fd1940b5caa6e09779504a58881a builds before 723d4dc628d764b19cf9efca14b82cca5ff020c9 | CNA record |
References
- https://git.kernel.org/stable/c/b7c7f07a40037514f8e890aa00f8d7b196d680cf
- https://git.kernel.org/stable/c/fc5f845a291fc8175e6857cd6ad042818da192e8
- https://git.kernel.org/stable/c/37583946d8751f8e285c467d770ac0b609b82a23
- https://git.kernel.org/stable/c/315c22712715491f0dfafdaf2c2b437540e68702
- https://git.kernel.org/stable/c/723d4dc628d764b19cf9efca14b82cca5ff020c9
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.