[Bug 213373] [drm] [radeon] memory leak at parsing radeon_atombios_parse_power_table

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=213373

Erhard F. (erhard_f at mailbox.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #297249|0                           |1
        is obsolete|                            |

--- Comment #4 from Erhard F. (erhard_f at mailbox.org) ---
Created attachment 298097
  --> https://bugzilla.kernel.org/attachment.cgi?id=298097&action=edit
kernel dmesg (5.14-rc3, eMachines E620)

output of /sys/kernel/debug/kmemleak on kernel v5.14-rc3:

unreferenced object 0xffff8881098e35a8 (size 96):
  comm "systemd-udevd", pid 128, jiffies 4294889391 (age 6947.280s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 7d 24 01 81 88 ff ff  .........}$.....
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffffa23f427c>] __kmalloc+0x16d/0x1df
    [<ffffffffc0a61447>] radeon_atombios_parse_power_table_1_3+0x446/0x1b26
[radeon]
    [<ffffffffc0a6f8db>] radeon_atombios_get_power_modes+0x149/0x188d [radeon]
    [<ffffffffc0b19ade>] radeon_pm_init+0x1002/0x18d1 [radeon]
    [<ffffffffc0aec0b5>] rs690_init+0x763/0x83f [radeon]
    [<ffffffffc0a59459>] radeon_device_init+0x1c1a/0x21c1 [radeon]
    [<ffffffffc0a5c24a>] radeon_driver_load_kms+0x1ef/0x408 [radeon]
    [<ffffffffc03d90f4>] drm_dev_register+0x255/0x4a0 [drm]
    [<ffffffffc0a55405>] radeon_pci_probe+0x132/0x15e [radeon]
    [<ffffffffa2a96484>] pci_device_probe+0x1aa/0x294
    [<ffffffffa2bc91aa>] really_probe+0x28f/0x76b
    [<ffffffffa2bc9825>] __driver_probe_device+0x19f/0x1ee
    [<ffffffffa2bc98b8>] driver_probe_device+0x44/0xbb
    [<ffffffffa2bca212>] __driver_attach+0x1a2/0x1d4
    [<ffffffffa2bc4cc7>] bus_for_each_dev+0xfa/0x146
    [<ffffffffa2bc6d81>] bus_add_driver+0x2b3/0x447
unreferenced object 0xffff888101247d00 (size 64):
  comm "systemd-udevd", pid 128, jiffies 4294889391 (age 6947.280s)
  hex dump (first 32 bytes):
    00 00 00 00 40 9c 00 00 00 00 00 00 00 00 00 00  .... at ...........
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffffa23f4407>] kmem_cache_alloc_trace+0x119/0x169
    [<ffffffffc0a6154e>] radeon_atombios_parse_power_table_1_3+0x54d/0x1b26
[radeon]
    [<ffffffffc0a6f8db>] radeon_atombios_get_power_modes+0x149/0x188d [radeon]
    [<ffffffffc0b19ade>] radeon_pm_init+0x1002/0x18d1 [radeon]
    [<ffffffffc0aec0b5>] rs690_init+0x763/0x83f [radeon]
    [<ffffffffc0a59459>] radeon_device_init+0x1c1a/0x21c1 [radeon]
    [<ffffffffc0a5c24a>] radeon_driver_load_kms+0x1ef/0x408 [radeon]
    [<ffffffffc03d90f4>] drm_dev_register+0x255/0x4a0 [drm]
    [<ffffffffc0a55405>] radeon_pci_probe+0x132/0x15e [radeon]
    [<ffffffffa2a96484>] pci_device_probe+0x1aa/0x294
    [<ffffffffa2bc91aa>] really_probe+0x28f/0x76b
    [<ffffffffa2bc9825>] __driver_probe_device+0x19f/0x1ee
    [<ffffffffa2bc98b8>] driver_probe_device+0x44/0xbb
    [<ffffffffa2bca212>] __driver_attach+0x1a2/0x1d4
    [<ffffffffa2bc4cc7>] bus_for_each_dev+0xfa/0x146
    [<ffffffffa2bc6d81>] bus_add_driver+0x2b3/0x447

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