{"id":"CVE-2025-21824","summary":"gpu: host1x: Fix a use of uninitialized mutex","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix a use of uninitialized mutex\n\ncommit c8347f915e67 (\"gpu: host1x: Fix boot regression for Tegra\")\ncaused a use of uninitialized mutex leading to below warning when\nCONFIG_DEBUG_MUTEXES and CONFIG_DEBUG_LOCK_ALLOC are enabled.\n\n[   41.662843] ------------[ cut here ]------------\n[   41.663012] DEBUG_LOCKS_WARN_ON(lock-\u003emagic != lock)\n[   41.663035] WARNING: CPU: 4 PID: 794 at kernel/locking/mutex.c:587 __mutex_lock+0x670/0x878\n[   41.663458] Modules linked in: rtw88_8822c(+) bluetooth(+) rtw88_pci rtw88_core mac80211 aquantia libarc4 crc_itu_t cfg80211 tegra194_cpufreq dwmac_tegra(+) arm_dsu_pmu stmmac_platform stmmac pcs_xpcs rfkill at24 host1x(+) tegra_bpmp_thermal ramoops reed_solomon fuse loop nfnetlink xfs mmc_block rpmb_core ucsi_ccg ina3221 crct10dif_ce xhci_tegra ghash_ce lm90 sha2_ce sha256_arm64 sha1_ce sdhci_tegra pwm_fan sdhci_pltfm sdhci gpio_keys rtc_tegra cqhci mmc_core phy_tegra_xusb i2c_tegra tegra186_gpc_dma i2c_tegra_bpmp spi_tegra114 dm_mirror dm_region_hash dm_log dm_mod\n[   41.665078] CPU: 4 UID: 0 PID: 794 Comm: (udev-worker) Not tainted 6.11.0-29.31_1538613708.el10.aarch64+debug #1\n[   41.665838] Hardware name: NVIDIA NVIDIA Jetson AGX Orin Developer Kit/Jetson, BIOS 36.3.0-gcid-35594366 02/26/2024\n[   41.672555] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   41.679636] pc : __mutex_lock+0x670/0x878\n[   41.683834] lr : __mutex_lock+0x670/0x878\n[   41.688035] sp : ffff800084b77090\n[   41.691446] x29: ffff800084b77160 x28: ffffdd4bebf7b000 x27: ffffdd4be96b1000\n[   41.698799] x26: 1fffe0002308361c x25: 1ffff0001096ee18 x24: 0000000000000000\n[   41.706149] x23: 0000000000000000 x22: 0000000000000002 x21: ffffdd4be6e3c7a0\n[   41.713500] x20: ffff800084b770f0 x19: ffff00011841b1e8 x18: 0000000000000000\n[   41.720675] x17: 0000000000000000 x16: 0000000000000000 x15: 0720072007200720\n[   41.728023] x14: 0000000000000000 x13: 0000000000000001 x12: ffff6001a96eaab3\n[   41.735375] x11: 1fffe001a96eaab2 x10: ffff6001a96eaab2 x9 : ffffdd4be4838bbc\n[   41.742723] x8 : 00009ffe5691554e x7 : ffff000d4b755593 x6 : 0000000000000001\n[   41.749985] x5 : ffff000d4b755590 x4 : 1fffe0001d88f001 x3 : dfff800000000000\n[   41.756988] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000ec478000\n[   41.764251] Call trace:\n[   41.766695]  __mutex_lock+0x670/0x878\n[   41.770373]  mutex_lock_nested+0x2c/0x40\n[   41.774134]  host1x_intr_start+0x54/0xf8 [host1x]\n[   41.778863]  host1x_runtime_resume+0x150/0x228 [host1x]\n[   41.783935]  pm_generic_runtime_resume+0x84/0xc8\n[   41.788485]  __rpm_callback+0xa0/0x478\n[   41.792422]  rpm_callback+0x15c/0x1a8\n[   41.795922]  rpm_resume+0x698/0xc08\n[   41.799597]  __pm_runtime_resume+0xa8/0x140\n[   41.803621]  host1x_probe+0x810/0xbc0 [host1x]\n[   41.807909]  platform_probe+0xcc/0x1a8\n[   41.811845]  really_probe+0x188/0x800\n[   41.815347]  __driver_probe_device+0x164/0x360\n[   41.819810]  driver_probe_device+0x64/0x1a8\n[   41.823834]  __driver_attach+0x180/0x490\n[   41.827773]  bus_for_each_dev+0x104/0x1a0\n[   41.831797]  driver_attach+0x44/0x68\n[   41.835296]  bus_add_driver+0x23c/0x4e8\n[   41.839235]  driver_register+0x15c/0x3a8\n[   41.843170]  __platform_register_drivers+0xa4/0x208\n[   41.848159]  tegra_host1x_init+0x4c/0xff8 [host1x]\n[   41.853147]  do_one_initcall+0xd4/0x380\n[   41.856997]  do_init_module+0x1dc/0x698\n[   41.860758]  load_module+0xc70/0x1300\n[   41.864435]  __do_sys_init_module+0x1a8/0x1d0\n[   41.868721]  __arm64_sys_init_module+0x74/0xb0\n[   41.873183]  invoke_syscall.constprop.0+0xdc/0x1e8\n[   41.877997]  do_el0_svc+0x154/0x1d0\n[   41.881671]  el0_svc+0x54/0x140\n[   41.884820]  el0t_64_sync_handler+0x120/0x130\n[   41.889285]  el0t_64_sync+0x1a4/0x1a8\n[   41.892960] irq event stamp: 69737\n[   41.896370] hardirqs last  enabled at (69737): [\u003cffffdd4be6d7768c\u003e] _raw_spin_unlock_irqrestore+0x44/0xe8\n[   41.905739] hardirqs last disabled at (69736):\n---truncated---","modified":"2026-04-02T12:45:14.898281Z","published":"2025-02-27T20:06:14.720Z","related":["SUSE-SU-2025:02254-1","SUSE-SU-2025:02307-1","SUSE-SU-2025:02333-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21824.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/02458fbfaa0170aabf8506f7d4ed054f02414251"},{"type":"WEB","url":"https://git.kernel.org/stable/c/127e91638ddcd02b80de92fec2240609a9f90426"},{"type":"WEB","url":"https://git.kernel.org/stable/c/396d8e5136b4476672bc15b83ba312486bb4bf76"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21824.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21824"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c8347f915e6779f6c861e7a041adf3559d51b363"},{"fixed":"396d8e5136b4476672bc15b83ba312486bb4bf76"},{"fixed":"127e91638ddcd02b80de92fec2240609a9f90426"},{"fixed":"02458fbfaa0170aabf8506f7d4ed054f02414251"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21824.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}