CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-36004 – i40e: Do not use WQ_MEM_RECLAIM flag for workqueue
https://notcve.org/view.php?id=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] ? • https://git.kernel.org/stable/c/4d5957cbdecdbb77d24c1465caadd801c07afa4a https://git.kernel.org/stable/c/09b54d29f05129b092f7c793a70b689ffb3c7b2c https://git.kernel.org/stable/c/546d0fe9d76e8229a67369f9cb61e961d99038bd https://git.kernel.org/stable/c/fbbb2404340dd6178e281bd427c271f7d5ec1d22 https://git.kernel.org/stable/c/ff7431f898dd00892a545b7d0ce7adf5b926944f https://git.kernel.org/stable/c/152ed360cf2d273f88fc99a518b7eb868aae2939 https://git.kernel.org/stable/c/8d6105f637883c8c09825e962308c06e977de4f0 https://git.kernel.org/stable/c/1594dac8b1ed78f9e75c263327e198a2e •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-36003 – ice: fix LAG and VF lock dependency in ice_reset_vf()
https://notcve.org/view.php?id=CVE-2024-36003
In the Linux kernel, the following vulnerability has been resolved: ice: fix LAG and VF lock dependency in ice_reset_vf() 9f74a3dfcf83 ("ice: Fix VF Reset paths when interface in a failed over aggregate"), the ice driver has acquired the LAG mutex in ice_reset_vf(). The commit placed this lock acquisition just prior to the acquisition of the VF configuration lock. If ice_reset_vf() acquires the configuration lock via the ICE_VF_RESET_LOCK flag, this could deadlock with ice_vc_cfg_qs_msg() because it always acquires the locks in the order of the VF configuration lock and then the LAG mutex. Lockdep reports this violation almost immediately on creating and then removing 2 VF: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-rc6 #54 Tainted: G W O ------------------------------------------------------ kworker/60:3/6771 is trying to acquire lock: ff40d43e099380a0 (&vf->cfg_lock){+.+.}-{3:3}, at: ice_reset_vf+0x22f/0x4d0 [ice] but task is already holding lock: ff40d43ea1961210 (&pf->lag_mutex){+.+.}-{3:3}, at: ice_reset_vf+0xb7/0x4d0 [ice] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&pf->lag_mutex){+.+.}-{3:3}: __lock_acquire+0x4f8/0xb40 lock_acquire+0xd4/0x2d0 __mutex_lock+0x9b/0xbf0 ice_vc_cfg_qs_msg+0x45/0x690 [ice] ice_vc_process_vf_msg+0x4f5/0x870 [ice] __ice_clean_ctrlq+0x2b5/0x600 [ice] ice_service_task+0x2c9/0x480 [ice] process_one_work+0x1e9/0x4d0 worker_thread+0x1e1/0x3d0 kthread+0x104/0x140 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1b/0x30 -> #0 (&vf->cfg_lock){+.+.}-{3:3}: check_prev_add+0xe2/0xc50 validate_chain+0x558/0x800 __lock_acquire+0x4f8/0xb40 lock_acquire+0xd4/0x2d0 __mutex_lock+0x9b/0xbf0 ice_reset_vf+0x22f/0x4d0 [ice] ice_process_vflr_event+0x98/0xd0 [ice] ice_service_task+0x1cc/0x480 [ice] process_one_work+0x1e9/0x4d0 worker_thread+0x1e1/0x3d0 kthread+0x104/0x140 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1b/0x30 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pf->lag_mutex); lock(&vf->cfg_lock); lock(&pf->lag_mutex); lock(&vf->cfg_lock); *** DEADLOCK *** 4 locks held by kworker/60:3/6771: #0: ff40d43e05428b38 ((wq_completion)ice){+.+.}-{0:0}, at: process_one_work+0x176/0x4d0 #1: ff50d06e05197e58 ((work_completion)(&pf->serv_task)){+.+.}-{0:0}, at: process_one_work+0x176/0x4d0 #2: ff40d43ea1960e50 (&pf->vfs.table_lock){+.+.}-{3:3}, at: ice_process_vflr_event+0x48/0xd0 [ice] #3: ff40d43ea1961210 (&pf->lag_mutex){+.+.}-{3:3}, at: ice_reset_vf+0xb7/0x4d0 [ice] stack backtrace: CPU: 60 PID: 6771 Comm: kworker/60:3 Tainted: G W O 6.8.0-rc6 #54 Hardware name: Workqueue: ice ice_service_task [ice] Call Trace: <TASK> dump_stack_lvl+0x4a/0x80 check_noncircular+0x12d/0x150 check_prev_add+0xe2/0xc50 ? save_trace+0x59/0x230 ? add_chain_cache+0x109/0x450 validate_chain+0x558/0x800 __lock_acquire+0x4f8/0xb40 ? lockdep_hardirqs_on+0x7d/0x100 lock_acquire+0xd4/0x2d0 ? ice_reset_vf+0x22f/0x4d0 [ice] ? • https://git.kernel.org/stable/c/fd7f7a8ad3363fd94fc3868616cc70a1d8dfc01b https://git.kernel.org/stable/c/9f74a3dfcf83e11aedcb98250b8040dbc6d9659a https://git.kernel.org/stable/c/740717774dc37338404d10726967d582414f638c https://git.kernel.org/stable/c/de8631d8c9df08440268630200e64b623a5f69e6 https://git.kernel.org/stable/c/96fdd1f6b4ed72a741fb0eb705c0e13049b8721f https://access.redhat.com/security/cve/CVE-2024-36003 https://bugzilla.redhat.com/show_bug.cgi?id=2281958 •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2024-36000 – mm/hugetlb: fix missing hugetlb_lock for resv uncharge
https://notcve.org/view.php?id=CVE-2024-36000
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix missing hugetlb_lock for resv uncharge There is a recent report on UFFDIO_COPY over hugetlb: https://lore.kernel.org/all/000000000000ee06de0616177560@google.com/ 350: lockdep_assert_held(&hugetlb_lock); Should be an issue in hugetlb but triggered in an userfault context, where it goes into the unlikely path where two threads modifying the resv map together. Mike has a fix in that path for resv uncharge but it looks like the locking criteria was overlooked: hugetlb_cgroup_uncharge_folio_rsvd() will update the cgroup pointer, so it requires to be called with the lock held. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/hugetlb: corrige la falta de Hugetlb_lock para descarga de resv. Hay un informe reciente sobre UFFDIO_COPY sobre Hugetlb: https://lore.kernel.org/all/000000000000ee06de0616177560@google.com/ 350: lockdep_assert_held(&hugetlb_lock); Debería ser un problema en hugetlb pero se activa en un contexto de error de usuario, donde entra en la ruta poco probable en la que dos subprocesos modifican el mapa resv juntos. Mike tiene una solución en esa ruta para la descarga de resv, pero parece que se pasó por alto el criterio de bloqueo: hugetlb_cgroup_uncharge_folio_rsvd() actualizará el puntero de cgroup, por lo que es necesario llamarlo con el bloqueo retenido. • https://git.kernel.org/stable/c/79aa925bf239c234be8586780e482872dc4690dd https://git.kernel.org/stable/c/f87004c0b2bdf0f1066b88795d8e6c1dfad6cea0 https://git.kernel.org/stable/c/4c806333efea1000a2a9620926f560ad2e1ca7cc https://git.kernel.org/stable/c/f6c5d21db16a0910152ec8aa9d5a7aed72694505 https://git.kernel.org/stable/c/538faabf31e9c53d8c870d114846fda958a0de10 https://git.kernel.org/stable/c/b76b46902c2d0395488c8412e1116c2486cdfcb2 https://access.redhat.com/security/cve/CVE-2024-36000 https://bugzilla.redhat.com/show_bug.cgi?id=2281968 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35999 – smb3: missing lock when picking channel
https://notcve.org/view.php?id=CVE-2024-35999
In the Linux kernel, the following vulnerability has been resolved: smb3: missing lock when picking channel Coverity spotted a place where we should have been holding the channel lock when accessing the ses channel index. Addresses-Coverity: 1582039 ("Data race condition (MISSING_LOCK)") En el kernel de Linux, se resolvió la siguiente vulnerabilidad: smb3: falta el bloqueo al seleccionar el canal. Coverity detectó un lugar donde deberíamos haber mantenido el bloqueo del canal al acceder al índice del canal ses. Direcciones-Cobertura: 1582039 ("Condición de ejecución de datos (MISSING_LOCK)") • https://git.kernel.org/stable/c/98c7ed29cd754ae7475dc7cb3f33399fda902729 https://git.kernel.org/stable/c/0fcf7e219448e937681216353c9a58abae6d3c2e https://git.kernel.org/stable/c/60ab245292280905603bc0d3654f4cf8fceccb00 https://git.kernel.org/stable/c/8094a600245e9b28eb36a13036f202ad67c1f887 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35998 – smb3: fix lock ordering potential deadlock in cifs_sync_mid_result
https://notcve.org/view.php?id=CVE-2024-35998
In the Linux kernel, the following vulnerability has been resolved: smb3: fix lock ordering potential deadlock in cifs_sync_mid_result Coverity spotted that the cifs_sync_mid_result function could deadlock "Thread deadlock (ORDER_REVERSAL) lock_order: Calling spin_lock acquires lock TCP_Server_Info.srv_lock while holding lock TCP_Server_Info.mid_lock" Addresses-Coverity: 1590401 ("Thread deadlock (ORDER_REVERSAL)") En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb3: corrige el posible interbloqueo en el orden de bloqueo en cifs_sync_mid_result Coverity detectó que la función cifs_sync_mid_result podría interbloquearse "Interbloqueo de subprocesos (ORDER_REVERSAL) lock_order: llamar a spin_lock adquiere el bloqueo TCP_Server_Info.srv_lock mientras mantiene el bloqueo TCP_Server_Info.mid_lock "Direcciones-Cobertura: 1590401 ("Estancamiento del hilo (ORDER_REVERSAL)") • https://git.kernel.org/stable/c/c7a4bca289e50bb4b2650f845c41bb3e453f4c66 https://git.kernel.org/stable/c/699f8958dece132709c0bff6a9700999a2a63b75 https://git.kernel.org/stable/c/8248224ab5b8ca7559b671917c224296a4d671fc https://git.kernel.org/stable/c/8861fd5180476f45f9e8853db154600469a0284f •