cve-2022-48746
Vulnerability from cvelistv5
Published
2024-06-20 11:13
Modified
2024-09-11 17:34
Severity ?
Summary
net/mlx5e: Fix handling of wrong devices during bond netevent
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4fad499d7fece448e7230d5e5b92f6d8a073e0bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a01ee1b8165f4161459b5ec4e728bc7130fe8cd4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec41332e02bd0acf1f24206867bb6a02f5877a62
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe70126da6063c29ca161cdec7ad1dae9af836b3
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

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          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix handling of wrong devices during bond netevent\n\nCurrent implementation of bond netevent handler only check if\nthe handled netdev is VF representor and it missing a check if\nthe VF representor is on the same phys device of the bond handling\nthe netevent.\n\nFix by adding the missing check and optimizing the check if\nthe netdev is VF representor so it will not access uninitialized\nprivate data and crashes.\n\nBUG: kernel NULL pointer dereference, address: 000000000000036c\nPGD 0 P4D 0\nOops: 0000 [#1] SMP NOPTI\nWorkqueue: eth3bond0 bond_mii_monitor [bonding]\nRIP: 0010:mlx5e_is_uplink_rep+0xc/0x50 [mlx5_core]\nRSP: 0018:ffff88812d69fd60 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: ffff8881cf800000 RCX: 0000000000000000\nRDX: ffff88812d69fe10 RSI: 000000000000001b RDI: ffff8881cf800880\nRBP: ffff8881cf800000 R08: 00000445cabccf2b R09: 0000000000000008\nR10: 0000000000000004 R11: 0000000000000008 R12: ffff88812d69fe10\nR13: 00000000fffffffe R14: ffff88820c0f9000 R15: 0000000000000000\nFS:  0000000000000000(0000) GS:ffff88846fb00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000000000036c CR3: 0000000103d80006 CR4: 0000000000370ea0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n mlx5e_eswitch_uplink_rep+0x31/0x40 [mlx5_core]\n mlx5e_rep_is_lag_netdev+0x94/0xc0 [mlx5_core]\n mlx5e_rep_esw_bond_netevent+0xeb/0x3d0 [mlx5_core]\n raw_notifier_call_chain+0x41/0x60\n call_netdevice_notifiers_info+0x34/0x80\n netdev_lower_state_changed+0x4e/0xa0\n bond_mii_monitor+0x56b/0x640 [bonding]\n process_one_work+0x1b9/0x390\n worker_thread+0x4d/0x3d0\n ? rescuer_thread+0x350/0x350\n kthread+0x124/0x150\n ? set_kthread_struct+0x40/0x40\n ret_from_fork+0x1f/0x30"
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    "datePublished": "2024-06-20T11:13:29.308Z",
    "dateReserved": "2024-06-20T11:09:39.055Z",
    "dateUpdated": "2024-09-11T17:34:48.098Z",
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