The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - drm/gem: Acquire references on GEM handles for framebuffers A GEM handle can be released while the GEM     buffer object is attached to a DRM framebuffer. This leads to the release of the dma-buf backing the     buffer object, if any. [1] Trying to use the framebuffer in further mode-setting operations leads to a     segmentation fault. Most easily happens with driver that use shadow planes for vmap-ing the dma-buf during     a page flip. An example is shown below. [ 156.791968] ------------[ cut here ]------------ [ 156.796830]     WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430 [...] [ 156.942028]     RIP: 0010:dma_buf_vmap+0x224/0x430 [ 157.043420] Call Trace: [ 157.045898] <TASK> [ 157.048030] ?     show_trace_log_lvl+0x1af/0x2c0 [ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0 [ 157.056836] ?     show_trace_log_lvl+0x1af/0x2c0 [ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710 [ 157.065567] ?     dma_buf_vmap+0x224/0x430 [ 157.069446] ? __warn.cold+0x58/0xe4 [ 157.073061] ? dma_buf_vmap+0x224/0x430 [     157.077111] ? report_bug+0x1dd/0x390 [ 157.080842] ? handle_bug+0x5e/0xa0 [ 157.084389] ?     exc_invalid_op+0x14/0x50 [ 157.088291] ? asm_exc_invalid_op+0x16/0x20 [ 157.092548] ?     dma_buf_vmap+0x224/0x430 [ 157.096663] ? dma_resv_get_singleton+0x6d/0x230 [ 157.101341] ?
    __pfx_dma_buf_vmap+0x10/0x10 [ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10 [ 157.110697]     drm_gem_shmem_vmap+0x74/0x710 [ 157.114866] drm_gem_vmap+0xa9/0x1b0 [ 157.118763]     drm_gem_vmap_unlocked+0x46/0xa0 [ 157.123086] drm_gem_fb_vmap+0xab/0x300 [ 157.126979]     drm_atomic_helper_prepare_planes.part.0+0x487/0xb10 [ 157.133032] ? lockdep_init_map_type+0x19d/0x880 [     157.137701] drm_atomic_helper_commit+0x13d/0x2e0 [ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180     [ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40 [...] [ 157.346424] ---[ end trace 0000000000000000 ]---     Acquiring GEM handles for the framebuffer's GEM buffer objects prevents this from happening. The     framebuffer's cleanup later puts the handle references. Commit 1a148af06000 (drm/gem-shmem: Use dma_buf     from GEM object instance) triggers the segmentation fault easily by using the dma-buf field more widely.
    The underlying issue with reference counting has been present before. v2: - acquire the handle instead of     the BO (Christian) - fix comment style (Christian) - drop the Fixes tag (Christian) - rename err_ gotos -     add missing Link tag (CVE-2025-38449)

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Linux Distros Unpatched Vulnerability : CVE-2025-38449

high Nessus Plugin ID 243792

Version 1.9