{ "threat_severity" : "Low", "public_date" : "2025-02-26T00:00:00Z", "bugzilla" : { "description" : "kernel: PM: core: keep irq flags in device_pm_check_callbacks()", "id" : "2348314", "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2348314" }, "cvss3" : { "cvss3_base_score" : "5.5", "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status" : "verified" }, "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nPM: core: keep irq flags in device_pm_check_callbacks()\nThe function device_pm_check_callbacks() can be called under the spin\nlock (in the reported case it happens from genpd_add_device() ->\ndev_pm_domain_set(), when the genpd uses spinlocks rather than mutexes.\nHowever this function uncoditionally uses spin_lock_irq() /\nspin_unlock_irq(), thus not preserving the CPU flags. Use the\nirqsave/irqrestore instead.\nThe backtrace for the reference:\n[ 2.752010] ------------[ cut here ]------------\n[ 2.756769] raw_local_irq_restore() called with IRQs enabled\n[ 2.762596] WARNING: CPU: 4 PID: 1 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x34/0x50\n[ 2.772338] Modules linked in:\n[ 2.775487] CPU: 4 PID: 1 Comm: swapper/0 Tainted: G S 5.17.0-rc6-00384-ge330d0d82eff-dirty #684\n[ 2.781384] Freeing initrd memory: 46024K\n[ 2.785839] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 2.785841] pc : warn_bogus_irq_restore+0x34/0x50\n[ 2.785844] lr : warn_bogus_irq_restore+0x34/0x50\n[ 2.785846] sp : ffff80000805b7d0\n[ 2.785847] x29: ffff80000805b7d0 x28: 0000000000000000 x27: 0000000000000002\n[ 2.785850] x26: ffffd40e80930b18 x25: ffff7ee2329192b8 x24: ffff7edfc9f60800\n[ 2.785853] x23: ffffd40e80930b18 x22: ffffd40e80930d30 x21: ffff7edfc0dffa00\n[ 2.785856] x20: ffff7edfc09e3768 x19: 0000000000000000 x18: ffffffffffffffff\n[ 2.845775] x17: 6572206f74206465 x16: 6c696166203a3030 x15: ffff80008805b4f7\n[ 2.853108] x14: 0000000000000000 x13: ffffd40e809550b0 x12: 00000000000003d8\n[ 2.860441] x11: 0000000000000148 x10: ffffd40e809550b0 x9 : ffffd40e809550b0\n[ 2.867774] x8 : 00000000ffffefff x7 : ffffd40e809ad0b0 x6 : ffffd40e809ad0b0\n[ 2.875107] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000\n[ 2.882440] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff7edfc03a8000\n[ 2.889774] Call trace:\n[ 2.892290] warn_bogus_irq_restore+0x34/0x50\n[ 2.896770] _raw_spin_unlock_irqrestore+0x94/0xa0\n[ 2.901690] genpd_unlock_spin+0x20/0x30\n[ 2.905724] genpd_add_device+0x100/0x2d0\n[ 2.909850] __genpd_dev_pm_attach+0xa8/0x23c\n[ 2.914329] genpd_dev_pm_attach_by_id+0xc4/0x190\n[ 2.919167] genpd_dev_pm_attach_by_name+0x3c/0xd0\n[ 2.924086] dev_pm_domain_attach_by_name+0x24/0x30\n[ 2.929102] psci_dt_attach_cpu+0x24/0x90\n[ 2.933230] psci_cpuidle_probe+0x2d4/0x46c\n[ 2.937534] platform_probe+0x68/0xe0\n[ 2.941304] really_probe.part.0+0x9c/0x2fc\n[ 2.945605] __driver_probe_device+0x98/0x144\n[ 2.950085] driver_probe_device+0x44/0x15c\n[ 2.954385] __device_attach_driver+0xb8/0x120\n[ 2.958950] bus_for_each_drv+0x78/0xd0\n[ 2.962896] __device_attach+0xd8/0x180\n[ 2.966843] device_initial_probe+0x14/0x20\n[ 2.971144] bus_probe_device+0x9c/0xa4\n[ 2.975092] device_add+0x380/0x88c\n[ 2.978679] platform_device_add+0x114/0x234\n[ 2.983067] platform_device_register_full+0x100/0x190\n[ 2.988344] psci_idle_init+0x6c/0xb0\n[ 2.992113] do_one_initcall+0x74/0x3a0\n[ 2.996060] kernel_init_freeable+0x2fc/0x384\n[ 3.000543] kernel_init+0x28/0x130\n[ 3.004132] ret_from_fork+0x10/0x20\n[ 3.007817] irq event stamp: 319826\n[ 3.011404] hardirqs last enabled at (319825): [] __up_console_sem+0x78/0x84\n[ 3.020332] hardirqs last disabled at (319826): [] el1_dbg+0x24/0x8c\n[ 3.028458] softirqs last enabled at (318312): [] _stext+0x410/0x588\n[ 3.036678] softirqs last disabled at (318299): [] __irq_exit_rcu+0x158/0x174\n[ 3.045607] ---[ end trace 0000000000000000 ]---" ], "affected_release" : [ { "product_name" : "Red Hat Enterprise Linux 8", "release_date" : "2022-11-08T00:00:00Z", "advisory" : "RHSA-2022:7683", "cpe" : "cpe:/o:redhat:enterprise_linux:8", "package" : "kernel-0:4.18.0-425.3.1.el8" }, { "product_name" : "Red Hat Enterprise Linux 9", "release_date" : "2022-11-15T00:00:00Z", "advisory" : "RHSA-2022:8267", "cpe" : "cpe:/a:redhat:enterprise_linux:9", "package" : "kernel-0:5.14.0-162.6.1.el9_1" }, { "product_name" : "Red Hat Enterprise Linux 9", "release_date" : "2022-11-15T00:00:00Z", "advisory" : "RHSA-2022:8267", "cpe" : "cpe:/o:redhat:enterprise_linux:9", "package" : "kernel-0:5.14.0-162.6.1.el9_1" } ], "package_state" : [ { "product_name" : "Red Hat Enterprise Linux 10", "fix_state" : "Not affected", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:10" }, { "product_name" : "Red Hat Enterprise Linux 6", "fix_state" : "Not affected", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:6" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Out of support scope", "package_name" : "kernel", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 7", "fix_state" : "Out of support scope", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:7" }, { "product_name" : "Red Hat Enterprise Linux 8", "fix_state" : "Out of support scope", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:8" }, { "product_name" : "Red Hat Enterprise Linux 9", "fix_state" : "Fix deferred", "package_name" : "kernel-rt", "cpe" : "cpe:/o:redhat:enterprise_linux:9" } ], "references" : [ "https://www.cve.org/CVERecord?id=CVE-2022-49175\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49175\nhttps://lore.kernel.org/linux-cve-announce/2025022613-CVE-2022-49175-1b88@gregkh/T" ], "name" : "CVE-2022-49175", "csaw" : false }