{"id":"CVE-2025-68776","revision":null,"records":[{"revision":"862aaad9a1ba44c5bdce9dcdb342b530","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-68776","aliases":[],"title":"net/hsr: fix NULL pointer dereference in prp_get_untagged_frame()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/hsr: fix NULL pointer dereference in prp_get_untagged_frame()\n\nprp_get_untagged_frame() calls __pskb_copy() to create frame->skb_std\nbut doesn't check if the allocation failed. If __pskb_copy() returns\nNULL, skb_clone() is called with a NULL pointer, causing a crash:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000000f: 0000 [#1] SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]\nCPU: 0 UID: 0 PID: 5625 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nRIP: 0010:skb_clone+0xd7/0x3a0 net/core/skbuff.c:2041\nCode: 03 42 80 3c 20 00 74 08 4c 89 f7 e8 23 29 05 f9 49 83 3e 00 0f 85 a0 01 00 00 e8 94 dd 9d f8 48 8d 6b 7e 49 89 ee 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 d1 01 00 00 44 0f b6 7d 00 41 83 e7 0c\nRSP: 0018:ffffc9000d00f200 EFLAGS: 00010207\nRAX: ffffffff892235a1 RBX: 0000000000000000 RCX: ffff88803372a480\nRDX: 0000000000000000 RSI: 0000000000000820 RDI: 0000000000000000\nRBP: 000000000000007e R08: ffffffff8f7d0f77 R09: 1ffffffff1efa1ee\nR10: dffffc0000000000 R11: fffffbfff1efa1ef R12: dffffc0000000000\nR13: 0000000000000820 R14: 000000000000000f R15: ffff88805144cc00\nFS: 0000555557f6d500(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000555581d35808 CR3: 000000005040e000 CR4: 0000000000352ef0\nCall Trace:\n \n hsr_forward_do net/hsr/hsr_forward.c:-1 [inline]\n hsr_forward_skb+0x1013/0x2860 net/hsr/hsr_forward.c:741\n hsr_handle_frame+0x6ce/0xa70 net/hsr/hsr_slave.c:84\n __netif_receive_skb_core+0x10b9/0x4380 net/core/dev.c:5966\n __netif_receive_skb_one_core net/core/dev.c:6077 [inline]\n __netif_receive_skb+0x72/0x380 net/core/dev.c:6192\n netif_receive_skb_internal net/core/dev.c:6278 [inline]\n netif_receive_skb+0x1cb/0x790 net/core/dev.c:6337\n tun_rx_batched+0x1b9/0x730 drivers/net/tun.c:1485\n tun_get_user+0x2b65/0x3e90 drivers/net/tun.c:1953\n tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1999\n new_sync_write fs/read_write.c:593 [inline]\n vfs_write+0x5c9/0xb30 fs/read_write.c:686\n ksys_write+0x145/0x250 fs/read_write.c:738\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f0449f8e1ff\nCode: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48\nRSP: 002b:00007ffd7ad94c90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00007f044a1e5fa0 RCX: 00007f0449f8e1ff\nRDX: 000000000000003e RSI: 0000200000000500 RDI: 00000000000000c8\nRBP: 00007ffd7ad94d20 R08: 0000000000000000 R09: 0000000000000000\nR10: 000000000000003e R11: 0000000000000293 R12: 0000000000000001\nR13: 00007f044a1e5fa0 R14: 00007f044a1e5fa0 R15: 0000000000000003\n \n\nAdd a NULL check immediately after __pskb_copy() to handle allocation\nfailures gracefully.","state":0,"publishedAt":"2026-01-13T15:28:52.766+00:00","modifiedAt":"2026-10-15T01:10:08.179+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 \"net/hsr/hsr_forward.c\"\n ],\n \"versions\": [\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"3ce95a57d8a1f0e20b637cdeddaaed81831ca819\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"c851e43b88b40bb7c20176c51cbf4f8c8d960dd9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"7be6d25f4d974e44918ba3a5d58ebb9d36879087\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"8f289fa12926aae44347ca7d490e216555d8f255\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"1742974c24a9c1f1fd2e5edca0cbaccb720b397a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"6220d38a08f8837575cd8f830928b49a3a5a5095\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"f266a683a4804dc499efc6c2206ef68efed029d0\",\n \"lessThan\": \"188e0fa5a679570ea35474575e724d8211423d17\",\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 \"net/hsr/hsr_forward.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.17\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.17\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.248\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.198\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.160\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.120\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.64\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.3\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/3ce95a57d8a1f0e20b637cdeddaaed81831ca819","https://git.kernel.org/stable/c/c851e43b88b40bb7c20176c51cbf4f8c8d960dd9","https://git.kernel.org/stable/c/7be6d25f4d974e44918ba3a5d58ebb9d36879087","https://git.kernel.org/stable/c/8f289fa12926aae44347ca7d490e216555d8f255","https://git.kernel.org/stable/c/1742974c24a9c1f1fd2e5edca0cbaccb720b397a","https://git.kernel.org/stable/c/6220d38a08f8837575cd8f830928b49a3a5a5095","https://git.kernel.org/stable/c/188e0fa5a679570ea35474575e724d8211423d17"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-68776","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-68776","identifiers":["CVE-2025-68776"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-f1df18dfb77f437e9e2ee1dd548e1f15","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T19:14:35.1855237+00:00","lastSuccessAt":"2026-11-09T19:14:35.178+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:14:35.178+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13398,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T19:02:11.0282238+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T19:02:11.0282238+00:00","lastSuccessAt":"2026-11-09T19:02:11.2551731+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:11.2551735+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-9c7aae9a77ad4fe48f16e3014ae326fa","complete":true,"records":13667,"lastAttemptAt":"2026-11-09T19:02:43.2420437+00:00","lastSuccessAt":"2026-11-09T19:02:43.234+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:43.234+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T19:02:10.7853332+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:10.7853332+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-712163772d637a9cfaa34d4241efb9e9d0ccd6149596c672c613d362f44af841","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T19:02:10.5860178+00:00","lastSuccessAt":"2026-11-09T18:02:23.0088273+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:10.5860178+00:00","snapshotPublishedAt":"2026-11-09T17:03:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-761ecc9061239b0da572dc9254c6f384c1d19339eb08408c436647a2f26129e9","complete":true,"records":3064,"lastAttemptAt":"2026-11-09T19:02:10.8954054+00:00","lastSuccessAt":"2026-11-09T17:05:03.4044794+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:10.8954054+00:00","snapshotPublishedAt":"2026-11-09T16:33:20+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-e3fec63b2a5926ae79916bc9569f5c1069b095db78f2be319f909e69e8e6d7d3","complete":true,"records":231313,"lastAttemptAt":"2026-11-09T19:02:10.6843987+00:00","lastSuccessAt":"2026-11-09T18:04:48.1910635+00:00","error":null,"lastVerifiedAt":"2026-11-09T19:02:10.6843987+00:00","snapshotPublishedAt":"2026-11-09T17:33:10+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}