CVE-2024-36004

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

i40e: Do not use WQ_MEM_RECLAIM flag for workqueue

Issue reported by customer during SRIOV testing, call trace:

When both i40e and the i40iw driver are loaded, a warning

in check_flush_dependency is being triggered. This seems

to be because of the i40e driver workqueue is allocated with

the WQ_MEM_RECLAIM flag, and the i40iw one is not.

Similar error was encountered on ice too and it was fixed by

removing the flag. Do the same for i40e too.

[Feb 9 09:08] ------------[ cut here ]------------

[ +0.000004] workqueue: WQ_MEM_RECLAIM i40e:i40e_service_task [i40e] is

flushing !WQ_MEM_RECLAIM infiniband:0x0

[ +0.000060] WARNING: CPU: 0 PID: 937 at kernel/workqueue.c:2966

check_flush_dependency+0x10b/0x120

[ +0.000007] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq

snd_timer snd_seq_device snd soundcore nls_utf8 cifs cifs_arc4

nls_ucs2_utils rdma_cm iw_cm ib_cm cifs_md4 dns_resolver netfs qrtr

rfkill sunrpc vfat fat intel_rapl_msr intel_rapl_common irdma

intel_uncore_frequency intel_uncore_frequency_common ice ipmi_ssif

isst_if_common skx_edac nfit libnvdimm x86_pkg_temp_thermal

intel_powerclamp gnss coretemp ib_uverbs rapl intel_cstate ib_core

iTCO_wdt iTCO_vendor_support acpi_ipmi mei_me ipmi_si intel_uncore

ioatdma i2c_i801 joydev pcspkr mei ipmi_devintf lpc_ich

intel_pch_thermal i2c_smbus ipmi_msghandler acpi_power_meter acpi_pad

xfs libcrc32c ast sd_mod drm_shmem_helper t10_pi drm_kms_helper sg ixgbe

drm i40e ahci crct10dif_pclmul libahci crc32_pclmul igb crc32c_intel

libata ghash_clmulni_intel i2c_algo_bit mdio dca wmi dm_mirror

dm_region_hash dm_log dm_mod fuse

[ +0.000050] CPU: 0 PID: 937 Comm: kworker/0:3 Kdump: loaded Not

tainted 6.8.0-rc2-Feb-net_dev-Qiueue-00279-gbd43c5687e05 #1

[ +0.000003] Hardware name: Intel Corporation S2600BPB/S2600BPB, BIOS

SE5C620.86B.02.01.0013.121520200651 12/15/2020

[ +0.000001] Workqueue: i40e i40e_service_task [i40e]

[ +0.000024] RIP: 0010:check_flush_dependency+0x10b/0x120

[ +0.000003] Code: ff 49 8b 54 24 18 48 8d 8b b0 00 00 00 49 89 e8 48

81 c6 b0 00 00 00 48 c7 c7 b0 97 fa 9f c6 05 8a cc 1f 02 01 e8 35 b3 fd

ff <0f> 0b e9 10 ff ff ff 80 3d 78 cc 1f 02 00 75 94 e9 46 ff ff ff 90

[ +0.000002] RSP: 0018:ffffbd294976bcf8 EFLAGS: 00010282

[ +0.000002] RAX: 0000000000000000 RBX: ffff94d4c483c000 RCX:

0000000000000027

[ +0.000001] RDX: ffff94d47f620bc8 RSI: 0000000000000001 RDI:

ffff94d47f620bc0

[ +0.000001] RBP: 0000000000000000 R08: 0000000000000000 R09:

00000000ffff7fff

[ +0.000001] R10: ffffbd294976bb98 R11: ffffffffa0be65e8 R12:

ffff94c5451ea180

[ +0.000001] R13: ffff94c5ab5e8000 R14: ffff94c5c20b6e05 R15:

ffff94c5f1330ab0

[ +0.000001] FS: 0000000000000000(0000) GS:ffff94d47f600000(0000)

knlGS:0000000000000000

[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

[ +0.000001] CR2: 00007f9e6f1fca70 CR3: 0000000038e20004 CR4:

00000000007706f0

[ +0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2:

0000000000000000

[ +0.000001] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:

0000000000000400

[ +0.000001] PKRU: 55555554

[ +0.000001] Call Trace:

[ +0.000001] <TASK>

[ +0.000002] ? __warn+0x80/0x130

[ +0.000003] ? check_flush_dependency+0x10b/0x120

[ +0.000002] ? report_bug+0x195/0x1a0

[ +0.000005] ? handle_bug+0x3c/0x70

[ +0.000003] ? exc_invalid_op+0x14/0x70

[ +0.000002] ? asm_exc_invalid_op+0x16/0x20

[ +0.000006] ? check_flush_dependency+0x10b/0x120

[ +0.000002] ? check_flush_dependency+0x10b/0x120

[ +0.000002] __flush_workqueue+0x126/0x3f0

[ +0.000015] ib_cache_cleanup_one+0x1c/0xe0 [ib_core]

[ +0.000056] __ib_unregister_device+0x6a/0xb0 [ib_core]

[ +0.000023] ib_unregister_device_and_put+0x34/0x50 [ib_core]

[ +0.000020] i40iw_close+0x4b/0x90 [irdma]

[ +0.000022] i40e_notify_client_of_netdev_close+0x54/0xc0 [i40e]

[ +0.000035] i40e_service_task+0x126/0x190 [i40e]

[ +0.000024] process_one_work+0x174/0x340

[ +0.000003] worker_th

---truncated---