{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2026-53353", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53353", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-07-01T13:32:29.699Z", "updatedAt": "2026-07-01T13:32:29.699Z", "importedAt": "2026-10-24T01:58:20.586Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "hsr: Remove WARN_ONCE() in hsr_addr_is_self().", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhsr: Remove WARN_ONCE() in hsr_addr_is_self().\n\nsyzbot reported the warning [0] in hsr_addr_is_self(),\nwhose assumption is simply wrong.\n\nhsr->self_node is cleared in hsr_del_self_node(), which\nis called from hsr_dellink().\n\nSince dev->rtnl_link_ops->dellink() is called before\nunregister_netdevice_many(), there is a window when\nuser can find the device but without hsr->self_node.\n\nLet's remove WARN_ONCE() in hsr_addr_is_self().\n\n[0]:\nHSR: No self node\nWARNING: net/hsr/hsr_framereg.c:39 at hsr_addr_is_self+0x211/0x3f0 net/hsr/hsr_framereg.c:39, CPU#0: syz.4.16848/17220\nModules linked in:\nCPU: 0 UID: 0 PID: 17220 Comm: syz.4.16848 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)}\nTainted: [L]=SOFTLOCKUP\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026\nRIP: 0010:hsr_addr_is_self+0x211/0x3f0 net/hsr/hsr_framereg.c:39\nCode: 33 2f 41 0f b7 dd 89 ee 09 de 31 ff e8 c8 b4 c6 f6 09 dd 74 54 e8 0f b0 c6 f6 31 ed eb 53 e8 06 b0 c6 f6 48 8d 3d 2f 50 9c 04 <67> 48 0f b9 3a 31 ed eb 42 e8 c1 13 1f 00 89 c5 31 ff 89 c6 e8 96\nRSP: 0018:ffffc900041c70e0 EFLAGS: 00010283\nRAX: ffffffff8afdc6ca RBX: ffffffff8afdc4e6 RCX: 0000000000080000\nRDX: ffffc90010493000 RSI: 0000000000000948 RDI: ffffffff8f9a1700\nRBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000\nR10: ffffc900041c71e8 R11: fffff52000838e3f R12: dffffc0000000000\nR13: ffff888041f9e3c0 R14: ffff888086ee3802 R15: 0000000000000000\nFS: 00007f6fe985d6c0(0000) GS:ffff888126176000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f80bd437dac CR3: 0000000025096000 CR4: 00000000003526f0\nDR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002\nDR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400\nCall Trace:\n \n check_local_dest net/hsr/hsr_forward.c:592 [inline]\n fill_frame_info net/hsr/hsr_forward.c:728 [inline]\n hsr_forward_skb+0xa11/0x2a80 net/hsr/hsr_forward.c:739\n hsr_dev_xmit+0x253/0x370 net/hsr/hsr_device.c:236\n __netdev_start_xmit include/linux/netdevice.h:5368 [inline]\n netdev_start_xmit include/linux/netdevice.h:5377 [inline]\n xmit_one net/core/dev.c:3888 [inline]\n dev_hard_start_xmit+0x2df/0x860 net/core/dev.c:3904\n __dev_queue_xmit+0x1428/0x3900 net/core/dev.c:4870\n neigh_output include/net/neighbour.h:556 [inline]\n ip_finish_output2+0xcec/0x10b0 net/ipv4/ip_output.c:237\n ip_send_skb net/ipv4/ip_output.c:1510 [inline]\n ip_push_pending_frames+0x8b/0x110 net/ipv4/ip_output.c:1530\n raw_sendmsg+0x1547/0x1a50 net/ipv4/raw.c:659\n sock_sendmsg_nosec net/socket.c:787 [inline]\n __sock_sendmsg net/socket.c:802 [inline]\n ____sys_sendmsg+0x7da/0x9c0 net/socket.c:2698\n ___sys_sendmsg+0x2a5/0x360 net/socket.c:2752\n __sys_sendmsg net/socket.c:2784 [inline]\n __do_sys_sendmsg net/socket.c:2789 [inline]\n __se_sys_sendmsg net/socket.c:2787 [inline]\n __x64_sys_sendmsg+0x1c3/0x2a0 net/socket.c:2787\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f6feb62ce59\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f6fe985d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f6feb8a6090 RCX: 00007f6feb62ce59\nRDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004\nRBP: 00007f6feb6c2d6f R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007f6feb8a6128 R14: 00007f6feb8a6090 R15: 00007ffcf01cc488\n ", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "271355c2ef6171dbc815e7ae653eed63444bbd58" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "0232b6fcb7615fb7fecfe0727a23065a53e228b8" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "66a46e22396fd5d09606f37f73643eb20e99aa42" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "d71bb171661ec0225bf4babdd4d296d744982fb3" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "afd0f17ca46258cec3a5cc48b8df9327fe772490" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.17" }, { "version": "6.6.143", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.94", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.36", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.0.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.0.*" }, { "version": "7.1", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }