CVE-2022-48633

In the Linux kernel, the following vulnerability has been resolved:
drm/gma500: Fix WARN_ON(lock->magic != lock) error psb_gem_unpin() calls
dma_resv_lock() but the underlying ww_mutex gets destroyed by
drm_gem_object_release() move the drm_gem_object_release() call in
psb_gem_free_object() to after the unpin to fix the below warning: [
79.693962] ------------[ cut here ]------------ [ 79.693992]
DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 79.694015] WARNING: CPU: 0 PID:
240 at kernel/locking/mutex.c:582 __ww_mutex_lock.constprop.0+0x569/0xfb0 [
79.694052] Modules linked in: rfcomm snd_seq_dummy snd_hrtimer qrtr bnep
ath9k ath9k_common ath9k_hw snd_hda_codec_realtek snd_hda_codec_generic
ledtrig_audio snd_hda_codec_hdmi snd_hda_intel ath3k snd_intel_dspcfg
mac80211 snd_intel_sdw_acpi btusb snd_hda_codec btrtl btbcm btintel btmtk
bluetooth at24 snd_hda_core snd_hwdep uvcvideo snd_seq libarc4
videobuf2_vmalloc ath videobuf2_memops videobuf2_v4l2 videobuf2_common
snd_seq_device videodev acer_wmi intel_powerclamp coretemp mc snd_pcm
joydev sparse_keymap ecdh_generic pcspkr wmi_bmof cfg80211 i2c_i801
i2c_smbus snd_timer snd r8169 rfkill lpc_ich soundcore acpi_cpufreq zram
rtsx_pci_sdmmc mmc_core serio_raw rtsx_pci gma500_gfx(E) video wmi
ip6_tables ip_tables i2c_dev fuse [ 79.694436] CPU: 0 PID: 240 Comm:
plymouthd Tainted: G W E 6.0.0-rc3+ #490 [ 79.694457] Hardware name:
Packard Bell dot s/SJE01_CT, BIOS V1.10 07/23/2013 [ 79.694469] RIP:
0010:__ww_mutex_lock.constprop.0+0x569/0xfb0 [ 79.694496] Code: ff 85 c0 0f
84 15 fb ff ff 8b 05 ca 3c 11 01 85 c0 0f 85 07 fb ff ff 48 c7 c6 30 cb 84
aa 48 c7 c7 a3 e1 82 aa e8 ac 29 f8 ff <0f> 0b e9 ed fa ff ff e8 5b 83 8a
ff 85 c0 74 10 44 8b 0d 98 3c 11 [ 79.694513] RSP: 0018:ffffad1dc048bbe0
EFLAGS: 00010282 [ 79.694623] RAX: 0000000000000028 RBX: 0000000000000000
RCX: 0000000000000000 [ 79.694636] RDX: 0000000000000001 RSI:
ffffffffaa8b0ffc RDI: 00000000ffffffff [ 79.694650] RBP: ffffad1dc048bc80
R08: 0000000000000000 R09: ffffad1dc048ba90 [ 79.694662] R10:
0000000000000003 R11: ffffffffaad62fe8 R12: ffff9ff302103138 [ 79.694675]
R13: ffff9ff306ec8000 R14: ffff9ff307779078 R15: ffff9ff3014c0270 [
79.694690] FS: 00007ff1cccf1740(0000) GS:ffff9ff3bc200000(0000)
knlGS:0000000000000000 [ 79.694705] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033 [ 79.694719] CR2: 0000559ecbcb4420 CR3: 0000000013210000
CR4: 00000000000006f0 [ 79.694734] Call Trace: [ 79.694749] <TASK> [
79.694761] ? __schedule+0x47f/0x1670 [ 79.694796] ?
psb_gem_unpin+0x27/0x1a0 [gma500_gfx] [ 79.694830] ?
lock_is_held_type+0xe3/0x140 [ 79.694864] ? ww_mutex_lock+0x38/0xa0 [
79.694885] ? __cond_resched+0x1c/0x30 [ 79.694902] ww_mutex_lock+0x38/0xa0
[ 79.694925] psb_gem_unpin+0x27/0x1a0 [gma500_gfx] [ 79.694964]
psb_gem_unpin+0x199/0x1a0 [gma500_gfx] [ 79.694996]
drm_gem_object_release_handle+0x50/0x60 [ 79.695020] ?
drm_gem_object_handle_put_unlocked+0xf0/0xf0 [ 79.695042]
idr_for_each+0x4b/0xb0 [ 79.695066] ? _raw_spin_unlock_irqrestore+0x30/0x60
[ 79.695095] drm_gem_release+0x1c/0x30 [ 79.695118]
drm_file_free.part.0+0x1ea/0x260 [ 79.695150] drm_release+0x6a/0x120 [
79.695175] __fput+0x9f/0x260 [ 79.695203] task_work_run+0x59/0xa0 [
79.695227] do_exit+0x387/0xbe0 [ 79.695250] ?
seqcount_lockdep_reader_access.constprop.0+0x82/0x90 [ 79.695275] ?
lockdep_hardirqs_on+0x7d/0x100 [ 79.695304] do_group_exit+0x33/0xb0 [
79.695331] __x64_sys_exit_group+0x14/0x20 [ 79.695353]
do_syscall_64+0x58/0x80 [ 79.695376] ? up_read+0x17/0x20 [ 79.695401] ?
lock_is_held_type+0xe3/0x140 [ 79.695429] ? asm_exc_page_fault+0x22/0x30 [
79.695450] ? lockdep_hardirqs_on+0x7d/0x100 [ 79.695473]
entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 79.695493] RIP:
0033:0x7ff1ccefe3f1 [ 79.695516] Code: Unable to access opcode bytes at RIP
0x7ff1ccefe3c7. [ 79.695607] RSP: 002b:00007ffed4413378 EFLAGS:
—truncated—