[    0.000000] Linux version 6.1.0-29-amd64 ([email protected]) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.123-1 (2025-01-02)
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.1.0-29-amd64 root=UUID=6f8d6915-6a5e-4ab8-915f-e67924b4670a ro quiet
...
[   11.623460] zram: Added device: zram0
[   14.956008] BUG: kernel NULL pointer dereference, address: 0000000000000000
[   14.956030] #PF: supervisor read access in kernel mode
[   14.956042] #PF: error_code(0x0000) - not-present page
[   14.956053] PGD 0 P4D 0
[   14.956062] Oops: 0000 [#1] PREEMPT SMP NOPTI
[   14.956074] CPU: 0 PID: 744 Comm: zramctl Not tainted 6.1.0-29-amd64 #1  Debian 6.1.123-1
[   14.956090] Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.24006586.B64.2406042154 06/04/2024
[   14.956107] RIP: 0010:zcomp_cpu_dead+0x8/0x60 [zram]
[   14.956124] Code: f3 31 c0 48 c7 c7 10 67 df c0 48 89 43 08 48 89 03 e8 40 0d a0 f3 ba f4 ff ff ff eb bb 0f 1f 44 00 00 0f 1f 44 00 00 89 ff 53 <48> 8b 5e f0 48 03 1c fd 60 6b 21 b5 48 8b 7b 08 48 85 ff 74 11 48
[   14.956151] RSP: 0018:ffffa59480b9fbc8 EFLAGS: 00010246
[   14.956163] RAX: ffffffffc0df2270 RBX: 0000000000000000 RCX: ffffffffb584ea80
[   14.956176] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000000
[   14.956188] RBP: 0000000000000044 R08: 0000000000000000 R09: 000000000000000a
[   14.956201] R10: ffff912235e20080 R11: 0fffffffffffffff R12: 0000000000000010
[   14.956215] R13: ffff912235e20080 R14: ffffffffc0df2270 R15: 0000000000000000
[   14.956228] FS:  00007f32516ed740(0000) GS:ffff912235e00000(0000) knlGS:0000000000000000
[   14.956243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.956255] CR2: 0000000000000000 CR3: 00000001042b4000 CR4: 0000000000750ef0
[   14.956285] PKRU: 55555554
[   14.956294] Call Trace:
[   14.956303]  <TASK>
[   14.956311]  ? __die_body.cold+0x1a/0x1f
[   14.956326]  ? page_fault_oops+0xd2/0x2b0
[   14.956339]  ? mntput_no_expire+0x4a/0x250
[   14.956353]  ? exc_page_fault+0x70/0x170
[   14.956366]  ? asm_exc_page_fault+0x22/0x30
[   14.956377]  ? zcomp_cpu_up_prepare+0xa0/0xa0 [zram]
[   14.956392]  ? zcomp_cpu_up_prepare+0xa0/0xa0 [zram]
[   14.956408]  ? zcomp_cpu_dead+0x8/0x60 [zram]
[   14.956421]  ? srso_alias_return_thunk+0x5/0x7f
[   14.956434]  cpuhp_invoke_callback+0x9e/0x460
[   14.956448]  cpuhp_issue_call+0x101/0x170
[   14.956459]  __cpuhp_state_remove_instance+0xd5/0x190
[   14.956805]  zcomp_destroy+0x1c/0x30 [zram]
[   14.957127]  zram_reset_device+0x121/0x1a0 [zram]
[   14.957440]  reset_store+0xa4/0x100 [zram]
[   14.957749]  kernfs_fop_write_iter+0x11e/0x1f0
[   14.958064]  vfs_write+0x235/0x3f0
[   14.958367]  ksys_write+0x6b/0xf0
[   14.958663]  do_syscall_64+0x55/0xb0
[   14.958959]  ? srso_alias_return_thunk+0x5/0x7f
[   14.959271]  ? handle_mm_fault+0xdb/0x2d0
[   14.959576]  ? srso_alias_return_thunk+0x5/0x7f
[   14.959874]  ? do_user_addr_fault+0x1b0/0x550
[   14.960164]  ? srso_alias_return_thunk+0x5/0x7f
[   14.960446]  ? exit_to_user_mode_prepare+0x40/0x1e0
[   14.960730]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[   14.961011] RIP: 0033:0x7f32517e82c0
[   14.961292] Code: 40 00 48 8b 15 41 9b 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d 21 23 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
[   14.961891] RSP: 002b:00007ffdc4f73af8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   14.962199] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f32517e82c0
[   14.962508] RDX: 0000000000000001 RSI: 00007ffdc4f73b10 RDI: 0000000000000004
[   14.962833] RBP: 00007f32516ed6b8 R08: 0000000000000000 R09: 0000000000000075
[   14.963140] R10: 00007ffdc4f73847 R11: 0000000000000202 R12: 0000000000000004
[   14.963442] R13: 00007ffdc4f73b10 R14: 000055b5bee86600 R15: 0000000000000002
[   14.963750]  </TASK>
[   14.964032] Modules linked in: zram zsmalloc vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock binfmt_misc nls_ascii nls_cp437 vfat fat intel_rapl_msr intel_rapl_common ghash_clmulni_intel sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 snd_ens1371 snd_ac97_codec ac97_bus gameport snd_rawmidi snd_seq_device vmw_balloon aesni_intel snd_pcm vmwgfx crypto_simd cryptd snd_timer drm_ttm_helper pcspkr snd ttm drm_kms_helper vmw_vmci soundcore ac button evdev joydev sg serio_raw drm loop dm_mod fuse efi_pstore configfs efivarfs ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic sd_mod t10_pi crc64_rocksoft crc64 crc_t10dif crct10dif_generic hid_generic usbhid hid sr_mod cdrom ata_generic ata_piix mptspi mptscsih ahci mptbase libahci uhci_hcd ehci_pci scsi_transport_spi crct10dif_pclmul xhci_pci crct10dif_common libata xhci_hcd crc32_pclmul ehci_hcd crc32c_intel psmouse usbcore e1000 scsi_mod usb_common i2c_piix4 scsi_common
[   14.966356] CR2: 0000000000000000
[   14.966682] ---[ end trace 0000000000000000 ]---
[   15.001320] RIP: 0010:zcomp_cpu_dead+0x8/0x60 [zram]
[   15.001917] Code: f3 31 c0 48 c7 c7 10 67 df c0 48 89 43 08 48 89 03 e8 40 0d a0 f3 ba f4 ff ff ff eb bb 0f 1f 44 00 00 0f 1f 44 00 00 89 ff 53 <48> 8b 5e f0 48 03 1c fd 60 6b 21 b5 48 8b 7b 08 48 85 ff 74 11 48
[   15.002915] RSP: 0018:ffffa59480b9fbc8 EFLAGS: 00010246
[   15.003270] RAX: ffffffffc0df2270 RBX: 0000000000000000 RCX: ffffffffb584ea80
[   15.003623] RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000000
[   15.003977] RBP: 0000000000000044 R08: 0000000000000000 R09: 000000000000000a
[   15.004333] R10: ffff912235e20080 R11: 0fffffffffffffff R12: 0000000000000010
[   15.004687] R13: ffff912235e20080 R14: ffffffffc0df2270 R15: 0000000000000000
[   15.005043] FS:  00007f32516ed740(0000) GS:ffff912235e00000(0000) knlGS:0000000000000000
[   15.005407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.005772] CR2: 0000000000000000 CR3: 00000001042b4000 CR4: 0000000000750ef0
[   15.006180] PKRU: 55555554
[   15.006552] note: zramctl[744] exited with irqs disabled