{"id":"AZL-48765","summary":"CVE-2024-44989 affecting package kernel for versions less than 5.15.167.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: fix xfrm real_dev null pointer dereference\n\nWe shouldn't set real_dev to NULL because packets can be in transit and\nxfrm might call xdo_dev_offload_ok() in parallel. All callbacks assume\nreal_dev is set.\n\n Example trace:\n kernel: BUG: unable to handle page fault for address: 0000000000001030\n kernel: bond0: (slave eni0np1): making interface the new active one\n kernel: #PF: supervisor write access in kernel mode\n kernel: #PF: error_code(0x0002) - not-present page\n kernel: PGD 0 P4D 0\n kernel: Oops: 0002 [#1] PREEMPT SMP\n kernel: CPU: 4 PID: 2237 Comm: ping Not tainted 6.7.7+ #12\n kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 04/01/2014\n kernel: RIP: 0010:nsim_ipsec_offload_ok+0xc/0x20 [netdevsim]\n kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA\n kernel: Code: e0 0f 0b 48 83 7f 38 00 74 de 0f 0b 48 8b 47 08 48 8b 37 48 8b 78 40 e9 b2 e5 9a d7 66 90 0f 1f 44 00 00 48 8b 86 80 02 00 00 \u003c83\u003e 80 30 10 00 00 01 b8 01 00 00 00 c3 0f 1f 80 00 00 00 00 0f 1f\n kernel: bond0: (slave eni0np1): making interface the new active one\n kernel: RSP: 0018:ffffabde81553b98 EFLAGS: 00010246\n kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA\n kernel:\n kernel: RAX: 0000000000000000 RBX: ffff9eb404e74900 RCX: ffff9eb403d97c60\n kernel: RDX: ffffffffc090de10 RSI: ffff9eb404e74900 RDI: ffff9eb3c5de9e00\n kernel: RBP: ffff9eb3c0a42000 R08: 0000000000000010 R09: 0000000000000014\n kernel: R10: 7974203030303030 R11: 3030303030303030 R12: 0000000000000000\n kernel: R13: ffff9eb3c5de9e00 R14: ffffabde81553cc8 R15: ffff9eb404c53000\n kernel: FS:  00007f2a77a3ad00(0000) GS:ffff9eb43bd00000(0000) knlGS:0000000000000000\n kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n kernel: CR2: 0000000000001030 CR3: 00000001122ab000 CR4: 0000000000350ef0\n kernel: bond0: (slave eni0np1): making interface the new active one\n kernel: Call Trace:\n kernel:  \u003cTASK\u003e\n kernel:  ? __die+0x1f/0x60\n kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA\n kernel:  ? page_fault_oops+0x142/0x4c0\n kernel:  ? do_user_addr_fault+0x65/0x670\n kernel:  ? kvm_read_and_reset_apf_flags+0x3b/0x50\n kernel: bond0: (slave eni0np1): making interface the new active one\n kernel:  ? exc_page_fault+0x7b/0x180\n kernel:  ? asm_exc_page_fault+0x22/0x30\n kernel:  ? nsim_bpf_uninit+0x50/0x50 [netdevsim]\n kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA\n kernel:  ? nsim_ipsec_offload_ok+0xc/0x20 [netdevsim]\n kernel: bond0: (slave eni0np1): making interface the new active one\n kernel:  bond_ipsec_offload_ok+0x7b/0x90 [bonding]\n kernel:  xfrm_output+0x61/0x3b0\n kernel: bond0: (slave eni0np1): bond_ipsec_add_sa_all: failed to add SA\n kernel:  ip_push_pending_frames+0x56/0x80","modified":"2026-04-01T05:16:05.627225Z","published":"2024-09-04T20:15:08Z","upstream":["CVE-2024-44989"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-44989"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.167.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-48765.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}