{"id":"DEBIAN-CVE-2024-43835","details":"In the Linux kernel, the following vulnerability has been resolved:  virtio_net: Fix napi_skb_cache_put warning  After the commit bdacf3e34945 (\"net: Use nested-BH locking for napi_alloc_cache.\") was merged, the following warning began to appear:  \t WARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0  \t  __warn+0x12f/0x340 \t  napi_skb_cache_put+0x82/0x4b0 \t  napi_skb_cache_put+0x82/0x4b0 \t  report_bug+0x165/0x370 \t  handle_bug+0x3d/0x80 \t  exc_invalid_op+0x1a/0x50 \t  asm_exc_invalid_op+0x1a/0x20 \t  __free_old_xmit+0x1c8/0x510 \t  napi_skb_cache_put+0x82/0x4b0 \t  __free_old_xmit+0x1c8/0x510 \t  __free_old_xmit+0x1c8/0x510 \t  __pfx___free_old_xmit+0x10/0x10  The issue arises because virtio is assuming it's running in NAPI context even when it's not, such as in the netpoll case.  To resolve this, modify virtnet_poll_tx() to only set NAPI when budget is available. Same for virtnet_poll_cleantx(), which always assumed that it was in a NAPI context.","modified":"2026-09-15T09:02:57.832774279Z","published":"2024-08-17T10:15:09.183Z","upstream":["CVE-2024-43835"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-43835"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.112-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43835.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43835.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.10.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-43835.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"}]}