7.8

CVE-2024-46766

In the Linux kernel, the following vulnerability has been resolved:

ice: move netif_queue_set_napi to rtnl-protected sections

Currently, netif_queue_set_napi() is called from ice_vsi_rebuild() that is
not rtnl-locked when called from the reset. This creates the need to take
the rtnl_lock just for a single function and complicates the
synchronization with .ndo_bpf. At the same time, there no actual need to
fill napi-to-queue information at this exact point.

Fill napi-to-queue information when opening the VSI and clear it when the
VSI is being closed. Those routines are already rtnl-locked.

Also, rewrite napi-to-queue assignment in a way that prevents inclusion of
XDP queues, as this leads to out-of-bounds writes, such as one below.

[  +0.000004] BUG: KASAN: slab-out-of-bounds in netif_queue_set_napi+0x1c2/0x1e0
[  +0.000012] Write of size 8 at addr ffff889881727c80 by task bash/7047
[  +0.000006] CPU: 24 PID: 7047 Comm: bash Not tainted 6.10.0-rc2+ #2
[  +0.000004] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0014.082620210524 08/26/2021
[  +0.000003] Call Trace:
[  +0.000003]  <TASK>
[  +0.000002]  dump_stack_lvl+0x60/0x80
[  +0.000007]  print_report+0xce/0x630
[  +0.000007]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[  +0.000007]  ? __virt_addr_valid+0x1c9/0x2c0
[  +0.000005]  ? netif_queue_set_napi+0x1c2/0x1e0
[  +0.000003]  kasan_report+0xe9/0x120
[  +0.000004]  ? netif_queue_set_napi+0x1c2/0x1e0
[  +0.000004]  netif_queue_set_napi+0x1c2/0x1e0
[  +0.000005]  ice_vsi_close+0x161/0x670 [ice]
[  +0.000114]  ice_dis_vsi+0x22f/0x270 [ice]
[  +0.000095]  ice_pf_dis_all_vsi.constprop.0+0xae/0x1c0 [ice]
[  +0.000086]  ice_prepare_for_reset+0x299/0x750 [ice]
[  +0.000087]  pci_dev_save_and_disable+0x82/0xd0
[  +0.000006]  pci_reset_function+0x12d/0x230
[  +0.000004]  reset_store+0xa0/0x100
[  +0.000006]  ? __pfx_reset_store+0x10/0x10
[  +0.000002]  ? __pfx_mutex_lock+0x10/0x10
[  +0.000004]  ? __check_object_size+0x4c1/0x640
[  +0.000007]  kernfs_fop_write_iter+0x30b/0x4a0
[  +0.000006]  vfs_write+0x5d6/0xdf0
[  +0.000005]  ? fd_install+0x180/0x350
[  +0.000005]  ? __pfx_vfs_write+0x10/0xA10
[  +0.000004]  ? do_fcntl+0x52c/0xcd0
[  +0.000004]  ? kasan_save_track+0x13/0x60
[  +0.000003]  ? kasan_save_free_info+0x37/0x60
[  +0.000006]  ksys_write+0xfa/0x1d0
[  +0.000003]  ? __pfx_ksys_write+0x10/0x10
[  +0.000002]  ? __x64_sys_fcntl+0x121/0x180
[  +0.000004]  ? _raw_spin_lock+0x87/0xe0
[  +0.000005]  do_syscall_64+0x80/0x170
[  +0.000007]  ? _raw_spin_lock+0x87/0xe0
[  +0.000004]  ? __pfx__raw_spin_lock+0x10/0x10
[  +0.000003]  ? file_close_fd_locked+0x167/0x230
[  +0.000005]  ? syscall_exit_to_user_mode+0x7d/0x220
[  +0.000005]  ? do_syscall_64+0x8c/0x170
[  +0.000004]  ? do_syscall_64+0x8c/0x170
[  +0.000003]  ? do_syscall_64+0x8c/0x170
[  +0.000003]  ? fput+0x1a/0x2c0
[  +0.000004]  ? filp_close+0x19/0x30
[  +0.000004]  ? do_dup2+0x25a/0x4c0
[  +0.000004]  ? __x64_sys_dup2+0x6e/0x2e0
[  +0.000002]  ? syscall_exit_to_user_mode+0x7d/0x220
[  +0.000004]  ? do_syscall_64+0x8c/0x170
[  +0.000003]  ? __count_memcg_events+0x113/0x380
[  +0.000005]  ? handle_mm_fault+0x136/0x820
[  +0.000005]  ? do_user_addr_fault+0x444/0xa80
[  +0.000004]  ? clear_bhb_loop+0x25/0x80
[  +0.000004]  ? clear_bhb_loop+0x25/0x80
[  +0.000002]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[  +0.000005] RIP: 0033:0x7f2033593154
Data is provided by the National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 6.8 < 6.10.10
LinuxLinux Kernel Version6.11 Updaterc1
LinuxLinux Kernel Version6.11 Updaterc2
LinuxLinux Kernel Version6.11 Updaterc3
LinuxLinux Kernel Version6.11 Updaterc4
LinuxLinux Kernel Version6.11 Updaterc5
LinuxLinux Kernel Version6.11 Updaterc6
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.032
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.