{"id":"CVE-2024-26953","revision":null,"records":[{"revision":"e61a31c49f13457daecde19be47c4385","observedAt":"2026-10-30T13:45:33.454+00:00","statement":{"source":"cve-program","id":"CVE-2024-26953","aliases":[],"title":"net: esp: fix bad handling of pages from page_pool","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: esp: fix bad handling of pages from page_pool\n\nWhen the skb is reorganized during esp_output (!esp->inline), the pages\ncoming from the original skb fragments are supposed to be released back\nto the system through put_page. But if the skb fragment pages are\noriginating from a page_pool, calling put_page on them will trigger a\npage_pool leak which will eventually result in a crash.\n\nThis leak can be easily observed when using CONFIG_DEBUG_VM and doing\nipsec + gre (non offloaded) forwarding:\n\n BUG: Bad page state in process ksoftirqd/16 pfn:1451b6\n page:00000000de2b8d32 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1451b6000 pfn:0x1451b6\n flags: 0x200000000000000(node=0|zone=2)\n page_type: 0xffffffff()\n raw: 0200000000000000 dead000000000040 ffff88810d23c000 0000000000000000\n raw: 00000001451b6000 0000000000000001 00000000ffffffff 0000000000000000\n page dumped because: page_pool leak\n Modules linked in: ip_gre gre mlx5_ib mlx5_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay zram zsmalloc fuse [last unloaded: mlx5_core]\n CPU: 16 PID: 96 Comm: ksoftirqd/16 Not tainted 6.8.0-rc4+ #22\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n Call Trace:\n \n dump_stack_lvl+0x36/0x50\n bad_page+0x70/0xf0\n free_unref_page_prepare+0x27a/0x460\n free_unref_page+0x38/0x120\n esp_ssg_unref.isra.0+0x15f/0x200\n esp_output_tail+0x66d/0x780\n esp_xmit+0x2c5/0x360\n validate_xmit_xfrm+0x313/0x370\n ? validate_xmit_skb+0x1d/0x330\n validate_xmit_skb_list+0x4c/0x70\n sch_direct_xmit+0x23e/0x350\n __dev_queue_xmit+0x337/0xba0\n ? nf_hook_slow+0x3f/0xd0\n ip_finish_output2+0x25e/0x580\n iptunnel_xmit+0x19b/0x240\n ip_tunnel_xmit+0x5fb/0xb60\n ipgre_xmit+0x14d/0x280 [ip_gre]\n dev_hard_start_xmit+0xc3/0x1c0\n __dev_queue_xmit+0x208/0xba0\n ? nf_hook_slow+0x3f/0xd0\n ip_finish_output2+0x1ca/0x580\n ip_sublist_rcv_finish+0x32/0x40\n ip_sublist_rcv+0x1b2/0x1f0\n ? ip_rcv_finish_core.constprop.0+0x460/0x460\n ip_list_rcv+0x103/0x130\n __netif_receive_skb_list_core+0x181/0x1e0\n netif_receive_skb_list_internal+0x1b3/0x2c0\n napi_gro_receive+0xc8/0x200\n gro_cell_poll+0x52/0x90\n __napi_poll+0x25/0x1a0\n net_rx_action+0x28e/0x300\n __do_softirq+0xc3/0x276\n ? sort_range+0x20/0x20\n run_ksoftirqd+0x1e/0x30\n smpboot_thread_fn+0xa6/0x130\n kthread+0xcd/0x100\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x31/0x50\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork_asm+0x11/0x20\n \n\nThe suggested fix is to introduce a new wrapper (skb_page_unref) that\ncovers page refcounting for page_pool pages as well.","state":0,"publishedAt":"2024-05-01T05:18:43.199+00:00","modifiedAt":"2026-10-30T12:18:04.284+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/skbuff.h\",\n \"net/ipv4/esp4.c\",\n \"net/ipv6/esp6.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6a5bcd84e886a9a91982e515c539529c28acdcc2\",\n \"lessThan\": \"21b989b62456a0e1eae9f464a5ca360a608625d1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6a5bcd84e886a9a91982e515c539529c28acdcc2\",\n \"lessThan\": \"8291b4eac429c480386669444c6377573f5d8664\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6a5bcd84e886a9a91982e515c539529c28acdcc2\",\n \"lessThan\": \"1abb20a5f4b02fb3020f88456fc1e6069b3cdc45\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6a5bcd84e886a9a91982e515c539529c28acdcc2\",\n \"lessThan\": \"f278ff9db67264715d0d50e3e75044f8b78990f4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6a5bcd84e886a9a91982e515c539529c28acdcc2\",\n \"lessThan\": \"c3198822c6cb9fb588e446540485669cc81c5d34\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/skbuff.h\",\n \"net/ipv4/esp4.c\",\n \"net/ipv6/esp6.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.14\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.14\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.191\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.24\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.7.12\",\n \"lessThanOrEqual\": \"6.7.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.8.3\",\n \"lessThanOrEqual\": \"6.8.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/21b989b62456a0e1eae9f464a5ca360a608625d1","https://git.kernel.org/stable/c/8291b4eac429c480386669444c6377573f5d8664","https://git.kernel.org/stable/c/1abb20a5f4b02fb3020f88456fc1e6069b3cdc45","https://git.kernel.org/stable/c/f278ff9db67264715d0d50e3e75044f8b78990f4","https://git.kernel.org/stable/c/c3198822c6cb9fb588e446540485669cc81c5d34"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-26953","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-26953","identifiers":["CVE-2024-26953"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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