{"id":"DEBIAN-CVE-2024-56639","details":"In the Linux kernel, the following vulnerability has been resolved:  net: hsr: must allocate more bytes for RedBox support  Blamed commit forgot to change hsr_init_skb() to allocate larger skb for RedBox case.  Indeed, send_hsr_supervision_frame() will add two additional components (struct hsr_sup_tlv and struct hsr_sup_payload)  syzbot reported the following crash: skbuff: skb_over_panic: text:ffffffff8afd4b0a len:34 put:6 head:ffff88802ad29e00 data:ffff88802ad29f22 tail:0x144 end:0x140 dev:gretap0 ------------[ cut here ]------------  kernel BUG at net/core/skbuff.c:206 ! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 2 UID: 0 PID: 7611 Comm: syz-executor Not tainted 6.12.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014  RIP: 0010:skb_panic+0x157/0x1d0 net/core/skbuff.c:206 Code: b6 04 01 84 c0 74 04 3c 03 7e 21 8b 4b 70 41 56 45 89 e8 48 c7 c7 a0 7d 9b 8c 41 57 56 48 89 ee 52 4c 89 e2 e8 9a 76 79 f8 90 \u003c0f\u003e 0b 4c 89 4c 24 10 48 89 54 24 08 48 89 34 24 e8 94 76 fb f8 4c RSP: 0018:ffffc90000858ab8 EFLAGS: 00010282 RAX: 0000000000000087 RBX: ffff8880598c08c0 RCX: ffffffff816d3e69 RDX: 0000000000000000 RSI: ffffffff816de786 RDI: 0000000000000005 RBP: ffffffff8c9b91c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000302 R11: ffffffff961cc1d0 R12: ffffffff8afd4b0a R13: 0000000000000006 R14: ffff88804b938130 R15: 0000000000000140 FS:  000055558a3d6500(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1295974ff8 CR3: 000000002ab6e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  \u003cIRQ\u003e   skb_over_panic net/core/skbuff.c:211 [inline]   skb_put+0x174/0x1b0 net/core/skbuff.c:2617   send_hsr_supervision_frame+0x6fa/0x9e0 net/hsr/hsr_device.c:342   hsr_proxy_announce+0x1a3/0x4a0 net/hsr/hsr_device.c:436   call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1794   expire_timers kernel/time/timer.c:1845 [inline]   __run_timers+0x6e8/0x930 kernel/time/timer.c:2419   __run_timer_base kernel/time/timer.c:2430 [inline]   __run_timer_base kernel/time/timer.c:2423 [inline]   run_timer_base+0x111/0x190 kernel/time/timer.c:2439   run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2449   handle_softirqs+0x213/0x8f0 kernel/softirq.c:554   __do_softirq kernel/softirq.c:588 [inline]   invoke_softirq kernel/softirq.c:428 [inline]   __irq_exit_rcu kernel/softirq.c:637 [inline]   irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649   instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]   sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049  \u003c/IRQ\u003e","modified":"2026-09-15T06:47:38.009153713Z","published":"2024-12-27T15:15:23.633Z","upstream":["CVE-2024-56639"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-56639"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56639.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.5-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-56639.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"}]}