ghsa-3mwh-qccg-vxm7
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
apparmor: fix possible NULL pointer dereference
profile->parent->dents[AAFS_PROF_DIR] could be NULL only if its parent is made from __create_missing_ancestors(..) and 'ent->old' is NULL in aa_replace_profiles(..). In that case, it must return an error code and the code, -ENOENT represents its state that the path of its parent is not existed yet.
BUG: kernel NULL pointer dereference, address: 0000000000000030
PGD 0 P4D 0
PREEMPT SMP PTI
CPU: 4 PID: 3362 Comm: apparmor_parser Not tainted 6.8.0-24-generic #24
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
RIP: 0010:aafs_create.constprop.0+0x7f/0x130
Code: 4c 63 e0 48 83 c4 18 4c 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 c3 cc cc cc cc <4d> 8b 55 30 4d 8d ba a0 00 00 00 4c 89 55 c0 4c 89 ff e8 7a 6a ae
RSP: 0018:ffffc9000b2c7c98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000000041ed RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b2c7cd8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff82baac10
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007be9f22cf740(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000030 CR3: 0000000134b08000 CR4: 00000000000006f0
Call Trace:
{
"affected": [],
"aliases": [
"CVE-2024-46721"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-18T07:15:03Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix possible NULL pointer dereference\n\nprofile-\u003eparent-\u003edents[AAFS_PROF_DIR] could be NULL only if its parent is made\nfrom __create_missing_ancestors(..) and \u0027ent-\u003eold\u0027 is NULL in\naa_replace_profiles(..).\nIn that case, it must return an error code and the code, -ENOENT represents\nits state that the path of its parent is not existed yet.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000030\nPGD 0 P4D 0\nPREEMPT SMP PTI\nCPU: 4 PID: 3362 Comm: apparmor_parser Not tainted 6.8.0-24-generic #24\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nRIP: 0010:aafs_create.constprop.0+0x7f/0x130\nCode: 4c 63 e0 48 83 c4 18 4c 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 c3 cc cc cc cc \u003c4d\u003e 8b 55 30 4d 8d ba a0 00 00 00 4c 89 55 c0 4c 89 ff e8 7a 6a ae\nRSP: 0018:ffffc9000b2c7c98 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 00000000000041ed RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffc9000b2c7cd8 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000000 R12: ffffffff82baac10\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 00007be9f22cf740(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000030 CR3: 0000000134b08000 CR4: 00000000000006f0\nCall Trace:\n \u003cTASK\u003e\n ? show_regs+0x6d/0x80\n ? __die+0x24/0x80\n ? page_fault_oops+0x99/0x1b0\n ? kernelmode_fixup_or_oops+0xb2/0x140\n ? __bad_area_nosemaphore+0x1a5/0x2c0\n ? find_vma+0x34/0x60\n ? bad_area_nosemaphore+0x16/0x30\n ? do_user_addr_fault+0x2a2/0x6b0\n ? exc_page_fault+0x83/0x1b0\n ? asm_exc_page_fault+0x27/0x30\n ? aafs_create.constprop.0+0x7f/0x130\n ? aafs_create.constprop.0+0x51/0x130\n __aafs_profile_mkdir+0x3d6/0x480\n aa_replace_profiles+0x83f/0x1270\n policy_update+0xe3/0x180\n profile_load+0xbc/0x150\n ? rw_verify_area+0x47/0x140\n vfs_write+0x100/0x480\n ? __x64_sys_openat+0x55/0xa0\n ? syscall_exit_to_user_mode+0x86/0x260\n ksys_write+0x73/0x100\n __x64_sys_write+0x19/0x30\n x64_sys_call+0x7e/0x25c0\n do_syscall_64+0x7f/0x180\n entry_SYSCALL_64_after_hwframe+0x78/0x80\nRIP: 0033:0x7be9f211c574\nCode: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d d5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89\nRSP: 002b:00007ffd26f2b8c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 00005d504415e200 RCX: 00007be9f211c574\nRDX: 0000000000001fc1 RSI: 00005d504418bc80 RDI: 0000000000000004\nRBP: 0000000000001fc1 R08: 0000000000001fc1 R09: 0000000080000000\nR10: 0000000000000000 R11: 0000000000000202 R12: 00005d504418bc80\nR13: 0000000000000004 R14: 00007ffd26f2b9b0 R15: 00007ffd26f2ba30\n \u003c/TASK\u003e\nModules linked in: snd_seq_dummy snd_hrtimer qrtr snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device i2c_i801 snd_timer i2c_smbus qxl snd soundcore drm_ttm_helper lpc_ich ttm joydev input_leds serio_raw mac_hid binfmt_misc msr parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs qemu_fw_cfg ip_tables x_tables autofs4 hid_generic usbhid hid ahci libahci psmouse virtio_rng xhci_pci xhci_pci_renesas\nCR2: 0000000000000030\n---[ end trace 0000000000000000 ]---\nRIP: 0010:aafs_create.constprop.0+0x7f/0x130\nCode: 4c 63 e0 48 83 c4 18 4c 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 45 31 d2 c3 cc cc cc cc \u003c4d\u003e 8b 55 30 4d 8d ba a0 00 00 00 4c 89 55 c0 4c 89 ff e8 7a 6a ae\nRSP: 0018:ffffc9000b2c7c98 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 00000000000041ed RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffc9000b2c7cd8 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000\n---truncated---",
"id": "GHSA-3mwh-qccg-vxm7",
"modified": "2024-09-20T18:32:25Z",
"published": "2024-09-18T09:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46721"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/09b2d107fe63e55b6ae643f9f26bf8eb14a261d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3dd384108d53834002be5630132ad5c3f32166ad"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/52338a3aa772762b8392ce7cac106c1099aeab85"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/59f742e55a469ef36c5c1533b6095a103b61eda8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/730ee2686af0d55372e97a2695005ff142702363"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8d9da10a392a32368392f7a16775e1f36e2a5346"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c49bbe69ee152bd9c1c1f314c0f582e76c578f64"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e3c7d23f7a5c0b11ba0093cea32261ab8098b94e"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.