{"id":"DEBIAN-CVE-2025-38628","details":"In the Linux kernel, the following vulnerability has been resolved:  vdpa/mlx5: Fix release of uninitialized resources on error path  The commit in the fixes tag made sure that mlx5_vdpa_free() is the single entrypoint for removing the vdpa device resources added in mlx5_vdpa_dev_add(), even in the cleanup path of mlx5_vdpa_dev_add().  This means that all functions from mlx5_vdpa_free() should be able to handle uninitialized resources. This was not the case though: mlx5_vdpa_destroy_mr_resources() and mlx5_cmd_cleanup_async_ctx() were not able to do so. This caused the splat below when adding a vdpa device without a MAC address.  This patch fixes these remaining issues:  - Makes mlx5_vdpa_destroy_mr_resources() return early if called on   uninitialized resources.  - Moves mlx5_cmd_init_async_ctx() early on during device addition   because it can't fail. This means that mlx5_cmd_cleanup_async_ctx()   also can't fail. To mirror this, move the call site of   mlx5_cmd_cleanup_async_ctx() in mlx5_vdpa_free().  An additional comment was added in mlx5_vdpa_free() to document the expectations of functions called from this context.  Splat:    mlx5_core 0000:b5:03.2: mlx5_vdpa_dev_add:3950:(pid 2306) warning: No mac address provisioned?   ------------[ cut here ]------------   WARNING: CPU: 13 PID: 2306 at kernel/workqueue.c:4207 __flush_work+0x9a/0xb0   [...]   Call Trace:    \u003cTASK\u003e    ? __try_to_del_timer_sync+0x61/0x90    ? __timer_delete_sync+0x2b/0x40    mlx5_vdpa_destroy_mr_resources+0x1c/0x40 [mlx5_vdpa]    mlx5_vdpa_free+0x45/0x160 [mlx5_vdpa]    vdpa_release_dev+0x1e/0x50 [vdpa]    device_release+0x31/0x90    kobject_cleanup+0x37/0x130    mlx5_vdpa_dev_add+0x327/0x890 [mlx5_vdpa]    vdpa_nl_cmd_dev_add_set_doit+0x2c1/0x4d0 [vdpa]    genl_family_rcv_msg_doit+0xd8/0x130    genl_family_rcv_msg+0x14b/0x220    ? __pfx_vdpa_nl_cmd_dev_add_set_doit+0x10/0x10 [vdpa]    genl_rcv_msg+0x47/0xa0    ? __pfx_genl_rcv_msg+0x10/0x10    netlink_rcv_skb+0x53/0x100    genl_rcv+0x24/0x40    netlink_unicast+0x27b/0x3b0    netlink_sendmsg+0x1f7/0x430    __sys_sendto+0x1fa/0x210    ? ___pte_offset_map+0x17/0x160    ? next_uptodate_folio+0x85/0x2b0    ? percpu_counter_add_batch+0x51/0x90    ? filemap_map_pages+0x515/0x660    __x64_sys_sendto+0x20/0x30    do_syscall_64+0x7b/0x2c0    ? do_read_fault+0x108/0x220    ? do_pte_missing+0x14a/0x3e0    ? __handle_mm_fault+0x321/0x730    ? count_memcg_events+0x13f/0x180    ? handle_mm_fault+0x1fb/0x2d0    ? do_user_addr_fault+0x20c/0x700    ? syscall_exit_work+0x104/0x140    entry_SYSCALL_64_after_hwframe+0x76/0x7e   RIP: 0033:0x7f0c25b0feca   [...]   ---[ end trace 0000000000000000 ]---","modified":"2026-09-01T20:05:49.605700817Z","published":"2025-08-22T16:15:36.470Z","upstream":["CVE-2025-38628"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-38628"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.43-1"}]}],"versions":["6.12.38-1","6.12.41-1","6.12.43-1~bpo12+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38628.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.16.3-1"}]}],"versions":["6.12.100-1","6.12.101-1","6.12.105-1","6.12.107-1","6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1","6.12.85-1~bpo12+1","6.12.86-1","6.12.86-1~bpo12+1","6.12.88-1","6.12.88-1~bpo12+1","6.12.90-1","6.12.90-1~bpo12+1","6.12.90-2","6.12.90-2~bpo12+1","6.12.94-1","6.12.94-1~bpo12+1","6.12.95-1","6.12.95-1~bpo12+1","6.12.96-1","6.13.10-1~exp1","6.13.11-1~exp1","6.13.2-1~exp1","6.13.3-1~exp1","6.13.4-1~exp1","6.13.5-1~exp1","6.13.6-1~exp1","6.13.7-1~exp1","6.13.8-1~exp1","6.13.9-1~exp1","6.13~rc6-1~exp1","6.13~rc7-1~exp1","6.14.3-1~exp1","6.14.5-1~exp1","6.14.6-1~exp1","6.15-1~exp1","6.15.1-1~exp1","6.15.2-1~exp1","6.15.3-1~exp1","6.15.4-1~exp1","6.15.5-1~exp1","6.15.6-1~exp1","6.15~rc7-1~exp1","6.16-1~exp1","6.16.1-1~exp1","6.16.3-1~bpo13+1","6.16~rc7-1~exp1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38628.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}